I understand about stuck throttles but I thought the whole reason for the tors on the parking brake was so if you forget the brake on ya dont take off and burn the brakes off. Because as everone knows, parking brakes never stay adjusted and would most likely create some drag so you could take off and not notice, ruin the brakes.
I was told by one dealership along time ago that snowmobile guys were bad for that and were taking off with the parking brake on and some machines were catching on fire!!