Bathroom Monologue: Not Much of a Biologist

"You want to know what testosterone does? Take a look at the bull shark. The average shark only swims and bites. Sometimes it reproduces, but it doesn't really pay attention. Just swims and bites. But the bull shark, full of more testosterone than any other fish, is absolutely bite-crazy. It'll bite anything, then kill and swallow that thing, so it can get to biting on whatever is behind the presently bitten thing. Your son, your grandma, your grandma's Buick. It doesn't matter. The bull shark will bite it. The thing can taste rotten and awful. It can be sharp. It can actually bite the bull shark in return. It can kill the bull shark. All the bull shark cares is that it's biting. That's what testosterone does to you. It makes even the simplest creature dumber."