One more point is that some people rightly take offense when people blame Mike for Brian's problems. But just a thought that I'll add in a humble, meek voice that it is possible that Mike hurt Brian without knowing he was doing so. I was thinking of a personal situation where I had an argument with someone which played out with several other people, she really hurt my feelings, and then about a year later she told me half of the things I thought she said she never did and people were exaggerating and/or I was coming to the wrong conclusions at the time. I think this is what happened with Mike and Brian. They had arguments, Brian's feelings got hurt and he probably made it worse than it was. Mike probably was just saying/doing what he thought was right and what he felt strongly about. Brian in 1965-1967 (and then 10x so in the following years) was a fragile person easily upset. Hell, he cried at "Flipper" and didn't have a lot of patience in general. Mike could've easily upset Brian without knowing he was doing so or as bad as he was. Just a theory.
Well said.