The Nazis: a bitter after-taste?

"Listen to this dude's story" said someone.
In walks a philosophy postgrad student, Canadian. He looks like a rather fetching farmhand from Brokeback Mountain.

It turns out our transatlantic chum was partaking of some Guinness in a campus bar when a bartender artfully traced a swastika atop his pint (presumably clovers are for pikeys). This - apparently - produced an explosion of very North American moral outrage. Pint was returned, supervisors called, barman suspended.

"He put a hate symbol in my beer, guys."