Dean is not amused, so he'll just make a disgruntled noise and sort of pout a little. Bunnies are terrifying. Really. Those big floppy ears are just a cover up. Everybody knows things that are really cute are actually really evil.

Right, Dean's stopping that train of thought right there.

Come on, though, Buffy, he's still looking at the ground, don't scare him like that. When she touches his arm he squeaks and jerks away, then stops, and sighs.

"... Yeah, alright. You mind if it's your house? It's... got more windows." Dean says, scratching at his arm absently. Meaning, it's not as dark and dusty as Bobby's house.