One time in Hayward, CA my then-girlfriend and I were stalked through town by a tweaker in a big pickup truck, us in an old Mazda 3. All I did was accidentally make eye contact in the parking lot, sort of clocked the gearface and then minded my business but he took umbrage somehow. Probably chased us for a few miles through her old neighbourhood. I even tried a lame little fakeout with my turn signals, but neither that car nor my driving skills were up for a French Connection reenactment and I think he eventually gave up because chasing me was too pathetic. Bet he would have kicked my shit in, if I actually put up a fight.