I came home today and when i put my key in the door, i found it rather rough. the key wouldnt slide in as gracefully as it usualy does and i had to twist and turn it until it went in all the way, and then i had a tough time turning it.
This problem just occured out of the blue and the lock has been fine for as long as i remembr, it is a rather old lock though. Does anyone suppose someone may have tried to force this lock? i sprayed it with some degreaser and now its okay.