I don't know," I said. "What else did you do for your first eighteen years?" "Like I said," he said as I unlocked the car, "I'm not so sure that you should go by my example." "Why not?" "Because I have my regrets," he said. "Also, I'm a guy. And guys do different stuff." "Like ride bikes?" I said. "No," he replied. "Like have food fights. And break stuff. And set off firecrackers on people's front porches. And..." "Girls can't set off firecrackers on people's front porches?" "They can," he said... "But they're smart enough not to. That's the difference.