Damn harassing semi-truck drivers...

What the hell is going on with truck drivers?
I am from Chicago, but I go to law school in Michigan. Whenever I get the chance, I make the ~4-hour drive home to Chicago to visit the family.
Not a single trip goes without being harassed by some *!@#*$% truck driver! What the hell? I am extra careful around semi-trucks because I know they are heavy and difficult to control. I never cut them off, and if I pass one, I do it very carefully, giving a wide berth. But for some reason I always seem to come across truck drivers who enjoy blowing their horns, flashing their lights, and tailgating me so closely that I could swear they're about to ram me in their 20+ ton land monster.

I know I've done absolutely notheing to provoke them, but for some reason they just keep harassing me. Has anybody else experienced this? Do those SOB's just get a kick out of this behavior, or something?
Sooner or later they are going to come across someone who won't tolerate that treatment, and maybe they'll be armed....

Those BASTARDS!!