All the time since I could stand, and ice hockey too. You will fall the first time, so don't worry about that, and just go with it, don't try to break the fall as that's when you can break a wrist.
@Poptartinvasion: You're welcome. The best advice is that if you feel yourself falling, try to sit down on the ice. It's the safest way to fall, if you lose your balance. Stopping is likely where you're going to have the most issues.
