Whether it is something that is intentional or not, it's not out of the ordinary for some drivers to tap the gas pedal a little harder than they should.
I will admit, at first I was very curious about this "driving aid." But the more I looked this odd gadget, the more I read..well, I just cannot figure out how it worked! Apparently it was sold in the 1950s to "take the work and worry out of parking a car...