*hugs* it happens to the best of us! I locked Remus under the bathroom sink once. I went to grab something out of there and when my back was turned that little stinker must have snuck in. I just closed the door and went on my merry way. About 15 minutes later (he gets bored quickly) I hear thud thud thud meeeeooow thud thud and Im thinking 'what the heck?' Turns out he was using one of the cleaner bottles to try and open the cabenet! Smart kitty! Once I let him out of there he kind of just glared at me for about two hours...