Dean looked over into the back as Sam stared out the window, trying to fall asleep. Faith had already fallen asleep in the passenger seat of the small-ish car they'd had to take on this stupid case. Dean wasn't sure why Angel had been the only one able to teleport there. If people could teleport people, they should be able to teleport cars too. Or they could have picked up a car when they got there. Either way, Dean didn't like being this far away from his baby while on a case.
He decided to quell his fears by testing out the power windows in the car. Namely, Sam's power window. He pushed it to go up, and then slowly back down again.
"Dean," was the only response he got.
Dean just smirked and did it a few more times. Garnering no response at all. He kept doing it just out of boredom anyway, and on about the twenty-second time going down, he finally got another response.
"DEAN! Stop f---ing around and let me sleep!"
Dean jumped, not expecting something so loud, then gingerly set the window back up again.
"Dude I'm bored," was his excuse.
"Just don't take it out on me, I've had a long day," Sam grunted, closing his eyes.
Dean looked back at him, suddenly catching eyes with Faith who was grinning slyly. He smirked in return, before beginning to pay attention to the road again.