i have things like that about every year.
so far in '07, nothing, but the year is young.

last year, riding to work in the spring, down a secondary artery, no other traffic in sight, and i'm just out of the door lane. beep-beep! little downward push of the hand to 'maintain, dude'. longer hoonnkk!, and i give him the Ullrich backhand wave (Nantes TT, '03). HHHHHOOOOOOOOONNNNNNNNNKKKKKKKK!!!!!!!!!!
EAGLE TIME!
at the end of the row of parked cars, this bag of fecal leavings cuts his front end at me, trying run me off the road, yelling that he's gonna run me over and shoot me -- all the time his girlfriend in the pass. seat, screaming at him to "just go on!"
i waved at him to pull ver and get on out -- i couldn't keep up with him as he drove off.