My favorite experience with instant karma, came when an acquaintance of my mother tried to force affection on me when I was fifteen. I told my wild and crazy brother, and he called the friend on the phone and told him my mother wanted to see him. (My mother was out; in fact my brother was the only one at home, with his newly trained police dog. ) My brother hid in a closet , and when the friend showed up, my brother sicced the dog on him. The dog chased him up and down the stairs, taking bites. Since he didn't know the dog, he had to go for a series of rabies shots.