With all due respect, I question this conclusion. Oh, this is not to say that no DUer ever shows up here to do what you describe. But I wouldn't be surprised if the majority of them -- with the percentage increasing as the age of the DUer goes down -- do these things:
-- 1) For the same reason we find ourselves almost involuntarily touching a sore tooth with our tongue;or,
-- 2) In the same spirit as a schoolboy, traveling in a moving bus, shouts obscenities at passerbys.
"-- 2) In the same spirit as a schoolboy, traveling in a moving bus, shouts obscenities at passerbys."
At first, I was going to say, "I can't believe they would be that immature," but then again, look at my suggestion. You have a point.
Me, I'm just always trying to get into people's minds, and figure out what they're thinking, and why. I can't help it. Maybe I have some weird mental problem, too :)