"How much for this poster?"
"That one? That one is ummmm, usually 15 euro but I'll sell it to you for 10"
"Do none of the posters have prices on them?"
"No, and neither do any of the books"
"Is that even legal? I thought everything had to have a price on it"
"HA! Don't make me laugh"
After about 2 minutes of poking around I approached him again:
"Can I please take your picture?"
"You want to take my picture? Why?"
"Because you have an interesting look"
"No you can't take my picture"
"Why?"
"Because I do not trust you"
"Is it me in particular or do you not trust people in general to take your picture?"
"It depends on the person, I don't want to offend you but there's something about you I don't trust"
That really wind knocked out of me. I left feeling gross shrouded in self-doubt about every random persons portrait I'd ever taken.