Originally Posted by crushkilldstroy
they'd catch me when i went back to pick [my U-lock] up. no way i'm dropping another 70 bones on another ny lock.
You don't
throw it, just hold it by the shackle and swing it

.
I'd tell the driver to take more care next time... If he's an ass about it and it looks like the nudge was intentional, kick the mirror off and ride away.