ha. Well I didn't say WHICH real life situations.
Even though it's bad for "self-defense," BJJ actually has some great applications - it's the kind of art that really lets you immobilize people without hurting them.
Being as Bird is saying he's not a streetfighting type, an art that would allow him to restrain and control a friend who is too drunk for reasoning, or a guy during a game who's angry about a penalty and all amped up, etc. would be a great thing.