OMG!! I totally know the panic of having a furbaby getting locked someplace they shouldn't have been. I about had a heart attack when my husband and I came home from vacation one time, and my Marius didn't come running like he normally does. I called his name and I heard a very pitiful mew, coming from my powder room(half bath). I felt my heart pounding in my throat as I opened the door and had my cat come stumbling out. Now I was SURE I closed that door before we left so he wouldn't go in there. I started to panic thinking he had been locked in there the entire time (there's no food, no water!!)!! But, I went out to the kitchen and all his food had been eaten, and his litter box had been used. So, to this day, I'm not sure how long he had been in there, but thank God it couldn't have been the entire time we were gone! It appeared he had only peed on the floor once, so it couldn't have been too long, maybe a day. I have to wonder if he somehow twisted the door handle and let himself in, then the door swung shut behind him. It has the tendancy to do that... So, to this day, I always double check doors and the whereabouts of my "kids" before leaving the house!!