Seriously, dude. That attitude is NOT COOL.
I do not at all appreciate your snarky tone and "I'm-like-so-more-ironic-than-thou" hipster judgment when looking over my CDs. I realize that some of the CDs I brought in were (gasp!) slightly uncool, but doesn't your hipster mind grasp that's why I was trying to unload them in the first place? Could you not have been slightly more accomodating to a customer looking to freshen up her music selection, rather than snickering over the CDs you clearly don't approve of or enjoy?
Whatever, man. I'm outta here.