In 1972, when I was 10, Franky Leper busted my handmade go-cart into pieces, then shoved me into the mud.

Leper was in his teens, then a big, fat, man-sized kid and I stood no chance.

But my older sister, Kris then 5 feet tall and 90 pounds was so angry at what she saw that she tackled him to the pavement and pounded on him with her fists until he blubbered like a baby.