Sorry to make you throw up, but it seriously is

My buddies never used to wear the safety glasses before the first time we saw it. A raquetball can get some SERIOUS speed going, and what usually ends up happening is the ball takes an angle you've never seen before in your life. Bang. Eye problem. A good server can get the ball up in the mid-100's, EASY. Not to mention the room gets fairly tiny when you throw in three other people besides yourself, and you're trying to avoid them and either hit or avoid the ball, someone's racket, the wall....

When my buddies and I first started playing, we weren't sure on how the rules went and didn't much care...we were enjoying banging the ball around. We thought if you got hit with the ball, you won the point. If someone built up a big enough lead, we "gave" him the game by trying to hit him with the ball and get the game over with quicker. You can raise some SERIOUS welts...so much so that one of my buddies ended up puking in the locker room because he was in so much pain.
Raquetball is like jai alai but in a smaller enclosed space. People have gotten killed in jai alai matches...doubt you'll get killed playing racketball, but some seriously bad stuff CAN and WILL happen, so make sure to wear the safety equipment, kiddies!