So, because I couldn't pay rent for a month last year, I agreed to let the landlord withdraw one month's rent from my security deposit.
Right after that, he asked me how quickly I can pay it back.
He's a sneaky bastard. He said nothing about this before, and now he simply expects it to happen. This way, I must either agree to it, or start an argument about it.
The deposit is mine. I'm legally obliged to pay it back, but no law prevents him from exerting such pressure.