When Vine user Paglo Barroeta found what looked like a pile of fuzz, he was naturally curious to find out what it was.
So he poked at it, revealing the terrifying answer.
The short Vine video is pretty much a visual representation of one of the top fears of many people. The fuzz ball turned out to be a nest of daddy-longlegs spiders.
If you dare, watch the man get surprised by an fast-moving avalanche of spiders: