Only time I was hit with consequences was when I was RO'ing an indoor bowling in match. Guy I was holding the timer behind had loaded his 38's so light they were bouncing off the pins - and one bounced back square in the twins. Dropped me like a bad habit, Everyone ELSE was laughing while I lay on the floor groaning. Oh yeah, NOW it's funny, but back then it wasn't...
But back to seriousness, North American Rescue has tons of pre built medical kits of all sizes to choose from.