Have you ever wondered what would happen if you mowed over a large branch (about 3 1/2 inches in diameter) that was covered with tall grass...
Obviously the branch would get stuck in the blade...but what would happen after that?(I mean after you pry the huge thing out of the blade and restart the mower)
The lawnmower would start on fire, that's what would happen.
Just thought I'd share that amazing tidbit of information.