Amazing to me. I'd never heard of such a thing in all my years of bicycle commuting. With one exception, though, I've always worked in the bicycle industry, so that's probably why.
My co-workers know I'm addicted to cycling and most know that I'm very low in consumption of alcohol (a little beer and wine occasionally) to that may contribute too.
Now people who see me riding my folder, or see my on the Metro might think that, but no one has ever said anything to that (DWI) effect.
Rick / OCRR