[Bow Tie 67]

GM electronic throttle system will go to idle also, but that is if is sees a difference in pedal input vs throttle body movement. If memory serves me correct its a .3 second difference and Bam!! your at idle. I know from experience. I'm thinking toyota has the same type of fail safe, so a sticking throttle pedal will do just this. How does the computer know that its stuck and not your foot planted on the floor.

Now the way morons drive, Green light Go, means on the floor to pass the guy in front, so at the next light your one car length ahead. I can see where mashing the dam pedal can stress the plastic pedal assy and cause wear / binding with age. Electrical I highly doubt it, I'm sure they spent millions designing the electrical side of this equation.