No baby!
I'm 44, and like most on here, I've seen a ton a movies in my days. The (Spoilers!) scene in the first movie with the baby on the ceiling....oh man, I still can't watch it a second time. That is by far the most disturbing scene I think I've ever seen.
This is the part where you make fun of me, fair enough, to each his own. Or you could also add your own "scene which you can't ever watch again because it weirds you out too much" here. Thanks.