The unnamed International transmission in my dad's old dump truck has reverse completely to the left and down. Conveniently placing it right in the middle of your goddamn leg.
It might not have been located quite that far over when new but now you basically have to scooch over and hug the driver door whenever you're backing up at all.
Honorable mention to the 6sp ZF trans in my dad's F550 flatbed, where reverse is left-and-up, also putting it near your knees and also in nice range of the hanging keys out of the ignition to whack against it randomly.