Dealing with a negative family member…or a person who just likes to put you down

I have found, in some 76 years on Earth, the best way to deal with anyone, is ask them a question to makes it all go your way, and do not try to tell them anything direct. Think about it and always be prepared with the questions to ask that asshole. If that does not work, bust him in the chops and THEN ask him why he thinks he had it coming!??