i used to plow my buddies driveway (the one i traded my bronco to) and he always said the city plow driver had it out for him and went through the extra trouble to plow him in
one day i was out there plowing, and i had made a few passes and backed into the drive when i saw him coming
so i sat back and watched
sure enough, about 2 feet before he reached the driveway, he veered to the right and he really did pile it in
not sure what the reason was, but he musta pissed him off somehow