done the same thing almost............................about 15 years ago, road call in middle winter for a tractor trailer with a thrown u-joint. laying under the truck in freezing water, my hands numb, i dropped the entire ujoint end of driveshaft square in my mouth, breaking all 4 front teeth.
needless to say i gave the boss hell for not having it towed into the shop, and promptly lost my job for it, thus having to pay to have my teeth fixed myself.