A Disgrace to Hippies Everywhere

I was just in line behind the rudest, most unfriendly hippie at Trader Joe's. She dropped something, I picked it up to hand it to her, and she just looked at me like I knocked it over and said, "is that mine?" No thank you at all.

Then she was noticeably unfriendly to the cashier, who was a nice older lady. THEN she took the messy sandwich she'd just bought, unwrapped it, and started eating while she was trying to pay. She was so hungry she couldn't wait the 30 seconds until she made it to the parking lot?

Trader Joe's is always full of the crunchy underbelly of northern Baltimore, of course. But usually, they're at least nice, if not perfectly polite. Doesn't it seem like there should be some sort of requirement that if you wear Birkenstocks, you are morally bound to be friendly?