A group of employees apparently decided to add a twist to the classic air horn-under-the-seat prank by targeting their own boss.

In a new video uploaded on YouTube, user scoobersteve91 says one of his bosses was away on business and some of the employees in the office decided to prank him.

It must be a pretty laid back office as the “boss” was wearing flip-flops and we’re assuming no one was reprimanded over the stunt. It wasn’t entirely clear where or when the video was recorded.

As the YouTube user notes, the prank “went pretty well.”

Watch the prank here (Warning: Strong language):