(The Blaze/AP) -- When the angry mob was rampaging through town, storming her home and those of other Christians, the 70-year-old woman hid in her cow pen, pushing a rock against the door. There she cowered for hours, at one point passing out from tear gas being fired by police that seeped in.
When Sameeha Wehba emerged just before dawn, she found she was the only Christian left in this small Egyptian village just south of Cairo, the location of some of the country's earliest pyramids.
Dahshour's entire Christian community - as many as 100 families some estimate - fled to nearby towns in the violence earlier this week. The flock's priest, cloaked in a white sheet to hide him, was taken out in a police van. At least 16 homes and properties of Christians were pillaged and some torched and a church damaged.
The violence was ultimately rooted in a dispute over a badly ironed shirt that escalated into a fight in which a Muslim was burned to death, sparking the rampage by angry Muslims.
"It was a devil's moment," Wehba said Thursday at the home of her Muslim neighbors, who have taken her in. "Whoever caused this was the devil's son."
The unprecedented exodus underscores how sectarian divisions are bubbling over in the wake of the revolution, in a country where 10 percent of the population is Christian.
Police forces have been weakened and often don't carry out their duties. Islamists have been emboldened, and in an atmosphere of lawlessness, Muslims and Christians alike seemingly feel freer in unleashing prejudices that were kept in check in the past.
Most notably in Dahshour, police did nothing as tensions spiraled following the burning of the Muslim man late last month.
"What is grave this time is that violence was not only expected but preventable, and security forces failed to prevent it even though they had prior knowledge," said Hossam Bahgat, head of the Egyptian Initiative for Personal Rights, which monitors sectarian violence.
In the past, incidents of sectarian violence in Egyptian towns often took a routine course. A local spat between a Muslim and Christian would escalate, and if a death occurred, violence would be sparked. Police would often see a bit of unrest as a way to let off steam but then negotiate a compromise solution over the death. Officials would deny any sectarian nature to the conflict.
Rage was also largely confined to the family of the killer, but now, the AP reports, angry Muslims are considering the entire Christian community as subject to retaliation.
"Collective retribution is the most dangerous and most likely (form of violence) to spread over time ... beyond the site of violence," Bahgat said.
Egypt's new president, Mohammed Morsi of the Muslim Brotherhood, didn't comment on the violence for several days. On Friday, he appealed to Dahshour's Christians to return home, promising justice against perpetrators of the violence.
"This was an individual incident and its origin is not about Muslims and Christians, and it happens every day. It was blown out of proportion," he said.
Many in the village say the Christians should not be allowed to return until the Christian laundry worker who set fire to the Muslim is killed. Other residents take an even harder line and say they shouldn't be let back at all.
The sentiments were on display even in the neighboring Muslim family that took in Wehba to protect her in case of further reprisals.
Um Mohammed, the 65-year old matron of the household whose son was a friend of the slain man, says Christians can come back, but only if justice is served against the killer. "He burned my heart. He must also be burned. It is retribution," she said.
"No Christian will return to this village again!" someone shouted from behind Umm Mohammed. It came from a little girl wearing a strict version of the Islamic headscarf, covering her head and much of her torso. The girl - apparently the child of a neighbor - was quickly shushed and hustled out of the room by the family.
"We didn't kick them out for nothing," said Ali el-Gizawy, a 47-year old government employee. "They betrayed our trust, and they will not be allowed to return."
The Christians feel a mix of frustration at the incompetence of authorities, a sense of injustice and a fear their fate may be irreversible.
Kirollos Shehata, a 22-year old Coptic Christian resident, said he hadn't wanted to leave but finally did as his Muslim neighbors and his own departing family members urged him to go with the others to avoid more violence.
"Now I can't imagine going back," he said. For him, it's not fear of violence but a sense that the Christians humiliated themselves by leaving. "How would we look to the rest of the community and how will people treat us?"
The dispute all began after the Christian laundry man and his family started lobbing firebombs from their roof onto an angry crowd over the "burnt shirt" incident. One man, Moez Mohammed, caught fire, and for the next two days Mohammed's brothers and friends went down the village's main Christian street, waving firebombs and threatening violence.
When one Christian countered that the whole community was not to blame, a fight broke out, until it was broken up by neighbors.
"They said if you don't leave the village, you will all die," Shehata recalled. Aside from the anger over the young man's death, there was economic jealousy because local Christians are seen as better off, he said. Moreover, some Islamists used the occasion to ignite deep-seated biases against Christians and their local priest and settle scores.
Among the Muslims, stories of Mohammed's death circulated and grew more gruesome in the retelling.
"His eyes were on fire," said a young boy in the house where Wehba was a guest. "He ran like a ball of fire," said the boy's grandmother. Another described his skin melting. Some said Mohammed had tried to break up the fight between Sameh and his client over the shirt; other said saved a little girl from the fire before he caught flame himself.
Meanwhile, Christian families began sending women and children out of the village, Shehata said.
When Mohammed died on Tuesday, those still there left and police escorted the priest out. After Mohammed's burial in the evening, hundreds of Muslims began attacking the homes Christians left behind and tried to storm the church, located inside the priest's house.
Wehba, the elderly woman who lives alone in her family home, was forgotten in the confusion.
"She is like one of us," said Umm Mohammed, her host, adding that she sleeps next to Wehba to reassure her. "She has no one. And she has nothing to do with it."