not me, but my friend is a karate black belt (10th degree) and someone tried to rob him. this is the funniest story ever.
we walk to his house (i was with him up to thhis point) and we see that the door is open. so he says "stay here and have a laugh". he goes in and closes /locks the door behind him. a few minuets later i hear yelling and screaming and knocking on the door. when he finnaly slacks off one of the robbers calls the cops on himself to get away.