I've never had a DUI
(knock on wood)
To expand a bit: I know a guy who just got a DUI. He blew .09 and was pulled for going 10 mph over on a very wide and empty 45 mph zone. He drinks frequently, has a high tolerance, and is a good dude. This is not the guy that's going to kill a family.
By contrast, I know a girl who got a DUI driving like a maniac, speeding through red lights, with a baby in the back who wasn't even strapped into the car seat, while over double the legal limit. She is the type to get people killed.
These two incidents are not comparable in my thinking. The first guy is of minimal danger; I don't consider what he did any more dangerous than someone driving recklessly, probably even less so because he was being careful. The girl, on the other hand, is a danger to society and needs to be dealt with much more harshly. But we, as a society, tend to see "DUI" and apply the same label to both.