This very reason is why I try (although sometimes I fail ) to follow all traffic regulations. While I personally won't cause any harm by going through a red light in front a car, when the driver of that car swerves to avoid me and runs down someone else, I won't feel much better than if it had been me that was run over. Well, maybe a little, but the pain would probably last longer.

But, this brings up an interesting question. When I lived in Philly, I often walked home from various bars or parties completely hammered, often not even remembering much of the trip home. In that state, I imagine I was as much of a hazard to vehicles on the roads as I would have been if I was a little buzzed on a bike. Granted, while walking I was mostly on the sidewalk but that wouldn't stop me from walking through an intersection in front of a car and causing an accident. But there is no law against W(walking)UI, right?