Pseudofuzz

Any cars parked or abandoned in the median in a manner similar to speed traps; cars with ski-racks, bike-rikes, any motorcylces that get behind your car, and motorcyles in general approaching in the other lane---that cause immediate, brief anxiety and elevated hearbeat over what speed you're driving and trigger instant, involuntary foot braking.

I put on my brakes and spilled my coffee because I was overspeeding but it was just pseudofuzz.