Lost my key! Help!? I lost the keys to my Dorm room. The locking apparatus is...

I lost the keys to my Dorm room. The locking apparatus is s twist "belly button" lock on the inside of the door, and push button on the outside. I'm wondering if anybody has any design on how I can forgo having a push button, but still manage to in safe hands my door. (lock it/ relatively secure it lacking a key). Best answer goes to most efficient idea.
Flooring giving path due to flood wrong?
Answers:    for dorm rooms,
they hold master key at desk usually
you are going to have need of to be locking your door in a dorm unless you are OK near people pilfering your goodies.
If indemnity isn't important, block the latch from getting into the doorframe and put a block of cardboard into the door as you leave it will preserve the door shut until someone pushes on it.
How to crack a digital undamaging?
you cant, take the lock sour, bring it to home depot, they will make a push button for the tumbler for about $3.00