Olive Oil; Apparently It Makes Some People Super Angry

I was buying bread in Co-op yesterday for work. I was wearing my work uniform, which, granted, does look a bit like the Co-op uniform. There's usually a little stand by the door with bread and olive oil for tasting. Yesterday it only had bits of bread on it.

A guy in his fifties, maybe sixties, came over to me, pointing angrily at the little stand and demanded to know what it was for. The conversation pretty much went like this;