You can't sometimes.
depends on district rulesit is at our school
If you want the very best lock that will fit on a school locker I would recommend the Master Lock 185D. It is a keyed lock, not a combination lock. It is a very high security lock that is vandalism-resistant and is not easily cut or shimmed.
you lock the doors with your hands
A painful hold in wrestling.
he has the scorpion death drop and the scorpion death lock
There are Spinebusters F-Us F5s Leg lock and much more
Wrestling or rugby by the look of your question.
It is recomeneded not to try wrestling at home.