So Dean/Gabriel for this one - it's Halloween night and all the households that possibly can are being forced to offer candy to the little trick-or-treaters. Dean really doesn't want to (he'd rather keep the candy for himself) but Gabe manages to convince him. Why? Because Gabriel really wants to make this stop far more heavily weighted on the "trick" side of things...

So yeah, just have Gabriel trick all these little kids, and Dean's gotta get pissy about it, like "Dude, that's not cool!"