How I know I'm raising a boy

TJ and I were driving home from work yesterday and it was low tide. As we came over the bridge you could easily see al the oyster beds. So I gave a brief science lesson and told him all about oysters and even explained how sometimes a piece of sand can get inside an oyster to make a pearl. He looked thoughtfully out the window for a moment then said "mom, I think there are actually bombs inside the oysters and they are all gonna go BOOOOM! Wouldn't that be cool mom?" Ahhhh Boys, they are not happy unless something is being demolished or destroyed.