[QUOTE=elau;1848704]
I usually take a little of that action in my own hands when I am in the mood. When I see one of those bikers come flying up behind me, I like to surprise them by a sudden lane change. A few times I swear the riders soiled their pants. QUOTE]

I drive an umarked Impala and I do something very similar. When I see them coming up behind me I wait until they are close and then casually turn on my rear deck lights. The flashing red and blue causes a rapid decceleration.