Like David said: "the closer they get the slower I drive"

No need to tap the brakes to scare them, that can be extremely dangerous, especially for anyone behind the a-hole tail gating you. Slowing way down is very effective but as with any no driving a-hole, road rage can result and that can be dangerous too. I did it ot one guy (slowed way down because he was riding my butt) on the upper level of a highway and he came around the side of me and ran me off the road, within inches of me going over the railing.

It took me a couple of years but I finally convinced my wife to quit giving bad drivers the finger. There are many people that could care less if you are a woman and will try to run you off the road or worse.

Eric