I had a boss that wouldn't hire people who smoked. He hired me before he asked me if i did, and the other girl there told me to hide it. When I was looking for my replacement, he told me to ask them if they smoked. I told him I wasn't comfortable with that.
Then on my last day, I made a point of him seeing me smoke. Considering I was a pretty damn good worker, maybe now he won't be so anal. I doubt it though, considering he rejected a black girl that was ten more times qualified than me.