Disclaimer: Kripke's creations, I'm just borrowing them. Please don't sue me.
Dean just couldn't stand the way Castiel stared at him. And it wasn't a normal stare either. Castiel had a way of almost, if not literally, staring into your soul.
"Cas? Hellooooo…" said Dean as he waved a hand in front of the angel's face.
"Hello, Dean," the angel replied, stare unwavering.
"Dude, how many times have I told you? The staring is freaking creepy!"
"I apologize, Dean. But you might want to look in the mirror."
Dean froze momentarily, confused. Sam, sitting on the bed behind them, snickered softly. Dean turned and looked in the mirror on the wall. At that moment, Dean screamed loud enough to wake the dead.
His hair had been died purple. Sam couldn't keep his composure and burst out laughing. Castiel stood in puzzled silence.
The Winchester prank war had begun again.