Fart jokes, no problem. I love a good fart joke.
Burping, Monsters has a really good one.
The crude ‘humor’ my wife and I can’t stand is in Madagascar and Robots (IIRC): Characters takes a big drink of something, then spew it all over. The girls love that one. Very easy to reproduce. To us it’s more of an annoying flaw than a joke.
No big deal; we’re cool.
I tell my kid that everything he sees on television is fake. That solves 99% of the problems. 
While I have nothing against “gross” humor (my son eagerly reads the Captain Underpants book series, replete with references to pee-pee, snot, fake doggy doo, and a man running around in his BVDs), I think it’s funny when it’s in moderation – when you’re using it all the time, it’s a sign you’re desperate for a laugh because the rest of the story sucks.
And the best animated fart joke ever IMO comes from Finding Nemo (the bit with the two seagulls), because it’s the penultimate **anti-**fart joke…
And what’s the next one?
I always thought that was the antepenultimate anti-fart joke, but I can never remember the other two.
I’m glad you’re calm when the shit’s going down.