Personally, I'm a little apprehensive about carrying during any extended physical activity wherein you are bending, stretching, throwing something. Just seems like there's too much of a chance of a mishap, like the weapon hitting the floor (which could be a bit dramatic at a kids bowling event). However, I always have a weapon nearby, one way or another. What about a small gym bag type deal, which holds your shoes, wallet and other assorted sundries, like your gun? You keep it close under your watchful eye and you have recourse if you should need it. I've done this on many occasions using my briefcase (or wife's purse) to conceal my firearm.