Is OTHER wrong in the post ? POST : I will try to summarize a very dramatic family fight, the kind of which has **never** occurred before. My family went out to a really nice restaurant but the food and experience ended up being a disaster. Many things were sold out, drinks were terrible, food was very very late etc. Anyways, they comp'd the entire meal, and of course we say "alright don't forget to tip the waiters, it wasn't their fault." My uncle, who is quite rich, immediately disagrees. Instead of keeping my mouth shut and tipping extra, I argued with him and told him he was wrong in front of the entire family including his kids. It got heated, he had consumed at least 10 tequila shots that day (we are on vacation in Mexico) and he was getting enraged. We finally dropped it and left the restaurant. 

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However, then his son felt I think emboldened to keep running his mouth at his father in front of everyone. Calling him out of touch, up on his ivory tower, all sorts of harsh words. Finally I think his dad had enough because he ran at him, grabbed him by the collar, swung back, made a fist, and this is when I basically tackled my uncle (to be clear I'm 25, all the other nieces/nephews are kids) to stop him.

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My family is hispanic, and my aunt basically told me i had no right to intervene, that it wasn't my business, and that he can do with his own children whatever he wants, especially when the kid was being so disrespectful. I simply felt that he was drunk, out of control, and completely unhinged. I didn't want him knocking out his kid for christ's sake. If he was going to slap him, ok, i don't agree, but not my business. But he went in with a closed fist. AITA?

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TL;DR I definitely contributed to my uncle becoming enraged while drunk, his 18 YO son followed my bad example, uncle snapped and went to punch his kid in the face but I physically stopped him, almost having to fight him myself before my father intervened. AITA for getting involved between him and his son? 