Q: Why would one endure a hard underwater camera case hanging around their neck while whitewater rafting?
A: Because sometimes you get the money shot - or at least it would be a money shot if I got paid for that sort of thing.
Q: Why do I see so many people riding on motorcyles/scooters/bikes without helmets?
A: Okay, this one I don't know. There are no prosthetics for your brain.
Q: Why would a jury in Minneapolis award damages of 1.92 million for sharing 24 songs?
A: This one I also don't know. Putting aside the dubious morality of pursuing expensive lawsuits based on evidence from a company who refuses to let the processes that produce their evidence be examined in detail, even assuming she's guilty could she possibly have caused 1.92 million dollars worth of damage?