I had a 1984 Buick Grand National when I was in college, and it had the standard GM hazard switch on the steering column (looked sort of like this):

I hated using it, because once it was on I could never figure out how to shut it off, and when I did manage to turn it off I felt like I was snapping a chicken bone in half.

Anyone else annoyed by this? Has any company made a switch that was worse from an ergonomics point-of-view?