Aye
I worked behind a bar after I got my PhD and before I got my first research job. I can add up in my head and remember an order of more than two drinks, just because I'm bar staff does not automatically make me some kind of moron.

I particularly enjoyed correcting someone's explanation of the Heisenberg Uncertainty Principle while I was pouring them a G and T.

I now never assume that the people serving me don't have a brain and thus try to treat them as I would wish to be treated. Naturally if they turn out to be a spacktard, I'll happily revise that opnion.
(Rakky (forgot her password) The muffin maverick, Tue 6 May 2008, 17:25, Reply)