You wait until Brad’s staring out the opposite car window, then take a marker from your backpack and draw a big black squiggle on his cheek.

You happen to think it’s pretty funny, but Brad freaks out, and soon you’re stopped at a gas station so he can wash the ink off. Your parents are super-angry at you for causing a fight, not to mention this unexpected stop. Once you’re all back on the road, everyone’s in a bad mood…everyone except Brad, that is. He’s happy and smiling because his goal all along was to get you in trouble!