When idiots ride my ass I slow down.

Im driving the speed limit in the right hand lane and you ride my ass - I let off the gas to the minimum speed (here its usually 45mph)

Im actively passing in the left lane and you ride my ass I let off the gas.

When the idots back off I speed back up. If they start riding me again I slow back down. After a few times of this they usually pull their heads out of their asses and back off/ properly change lanes.