My brother and i took real metal tip darts and locked the door of the room so neither could escape and launched at each other's bare feet. Then we took turns throwing the darts into each other's backs. We had pistol copper BB gun fights before, sword fought with metal rainbow vacuum extensions and would literally end up playing chicken on our home made go carts with 4 wheeler back tires after a day or racing in the mud in a cow pasture, dragging one another through huge pools of standing water mud pits as one of us laid on our stomachs holding a long rope. We'd get ringworms from the the mud mixed with cow patties and purple ringer shrooms. Thank God we stopped before we got to much older because the crazy shit kept escalating and we would both be dead by now. He's 38 now and I'm 40 and he needs a liver transplant, so in a month or two I'll be giving him 70% of my liver. Wish us luck.