Sam had a crush on Susie and the spring dance was coming up. It took days for Sam to work up enough guts to approach her.
"Susie," he said, "Would you like to go to the dance with me?"
"What? There's no way I'd go with someone like you," she spun on her heel and walked away.
Back home, Sam tried to act like everything was fine. Dean saw right through it. "What's up, Sammy?"
"Got shot down for the dance."
"That's why I go for lust," Dean replied. "It's quick to start and leave. Like a salt and burn."