That's a really good point I never considered. If it's played for laughs, you want people laughing. If it's not, you want people grossed out, but not so much they need to mop up in theaters.
There is a scene in a movies I saw reacently that was so graphic and realistic that I had to stop watching! Don't remember the movie name but it was brutal
No, but that one is rough, too. Stand By Me has the story or the obese kid at the pie eating contest. That one can be forgiven for being over the top, because it was a campfire story being told by one of the kids. So of course it would be exaggerated.