I've always thought that being in a big time title fight must be one of the most nerve-wracking things a human being can possibly do. You've known it's going to happen for months, and when the time finally arrives, you enter the ring in front of thousands of screaming bloodthirsty fans, most of whom are hoping that one of you takes the other's head off.
Ernest Hemingway once defined guts as "grace under pressure." Humor under pressure is basically the same thing; it's hard not to admire anyone who shows it.
In the previous post I mentioned Jorge "Maromero" Paez, the Mexican boxer, who was able to pull off a clownish act in what most of us would consider extraordinarily tense circumstances. Just watch the first forty seconds of the following video (it's boring after that). And if you're offended by obscene dancing, don't watch it at all: