My all time "favorite" - Just before Christmas last year, I came up from behind on a lady who was all over her lane and the shoulder. Trying to figure out if she was drunk (so I could call the cops on her), I followed her for awhile and noticed she was messing with something in the passenger seat. I finally decided she probably wasn't drunk, just stoopid and preoccupied, so I passed her. Had no idea what to do when I saw she was changing a kid's diaper. Probably should have called the cops after all, but I was too dumfounded to do anything but shake my head and flip her off.