People are sharing moments that instantly killed the mood in a room of happy people.

Ever been in a room full of happy people enjoying themselves, and suddenly things go quiet, in a bad way? Usually it's because I accidentally told an inappropriately dark joke at a birthday party. But there are all kinds of things that can instantly kill the mood at a party or social gathering.

People on Reddit are sharing the fastest way they've witnessed a room full of happy people turn sour. Here are 23 stories of moments that sucked the energy out of a room faster than you can say "womp womp!":

1.) From kateisit27:

Not my story, but a friend of mine was attending a Christian Pentecostal summer camp a few years ago with some high school students and other adult leaders. For anyone who is unfamiliar with Pentecostal youth camps, the evening church services can get pretty lively and charged with emotion. People being slain in the spirit, speaking in tongues, lots of worship and confessing sins. That sort of thing. There were probably a couple hundred students, so things may have gotten chaotic. Anyway, my friend and one of the other adult leaders get pulled on stage to confess sins to the audience. Not sure who thought this was a good idea, but maybe it wasn't planned. And the other adult leader, a nice guy in his 20s (newly married), confesses to the packed auditorium of high schoolers hyped up on Jesus that he used to have sex with his dog. The evening service pretty much ended after that.