Well, I'd argue that Tyson was never really in the place in the first instance, but his inability to control himself is getting silly. I'm not a fan of boxing, but I'm not against it either. I see it as a sport that is physically demanding, sometimes dangerous (but not as dangerous as rugby, skiing etc), and heavily rooted in discipline. For many kids it really is a useful way of channelling natural agression through skill into something constructive, but not violent.
Tyson on the other hand is a big bully. He can't control his actions in or out of a boxing ring, so the boxing authorities shouldn't let him compete. I couldn't believe Lewis would consider fighting him, but I suppose it must be tempting when the money's so big, and he's such a famous name in the sport. The grown-up and sensible person in me thinks that even if the authorities allow it, Lewis should refuse to have anything to do with him. The immature and vitriolic part of me hoped he whips his ass!