dad & moms answer

The next day they are again in the tub. The boy says its a car and remembers what his dad said. So he begins to put it in the girls "garage". But then the girl remembers what her mom said.

5 minutes later, the girl comes to the mom with blood all over her. The mother asks her what was wrong and she said: "Mommy, a boy tried to put his car in my garage, but I popped his two back tires."