Robbery.
When my mom and dad were running that motel in Oxnard, the same motel where my dad would "practice" his "kung fu", some guy tried to rob my dad while he was working the front desk. From what my mom tells me, the guy had a gun and everything, and he was pointing it at my dad demanding money. My dad reached over to the cash register, but instead of pulling the cash out, he pulled the entire drawer out and slammed it unto the guy's head. He ran, firing some shots behind him, and luckily my dad wasn't hit, but only nicked with a dented coin that had absorbed one of the bullet shots. He kept the dented coin for awhile, but my mom made him get rid of it because she felt it wasn't good luck. My mom said he also bitch-kicked some belligerent customer in the chest and made him fly. It is pretty safe to say he was quite a bad-ass.