"I have seen the two wheel variety drive between cars in heavy traffic, not use their signals, cut me off in traffic, etc.
It is difficult to sympathize when they drive like this."
-I agree. While I think there is no excuse for what the driver of the truck did, if those of you bikers out there posting on this thread want some empathy, then tell your brethren to stop being a**holes in traffic by passing full speed between two cars in side by side lanes or weaving in and out of traffic during tie ups as if, waiting is something people in cars do and that two wheeled vehicles can go where they like. Its this type of constant biker behavior that gets those of us in four wheeled vehicles to the point where our reflexive thought is: "You guys have it coming."
Lane splitting is legal in some states.