Lifetime ban? I don't know about that. I think a stiff six to eight month suspension would suffice. That said, the UFC needs to get some control, and stop rewarding shit like this. I was called crazy by a few in here for saying that the UFC would use the bus incident to promote their inevitable fight. Oh' look, they did. While its only natural to use it for promotion, it sends a bad message because it was the biggest star in the company doing it, and he got a huge payday out of it, for what was sold as the "Biggest Fight in UFC History" in part due to all the craziness.
Let this one go, because I believe the UFC is partially responsible for creating the environment, but the UFC needs to make it clear that it won't be tolerated from here on out. If they're serious about it, anyways. I wouldn't blame them for loving the business it creates.