Have a 1 1/2 yr. old Maine coon cat, altered male, who used a litter box until spring, when he decided he would be an outside cat. He and a stray I feed think the garden is the litterbox, but now that it's turning cold, my cat (Arlo) wants to come inside in the evening. Trouble is that in the middle of the night, when nature calls, he wakes me up, generally by scratching the side of the mattress, which he know results in my jumping out of the bed to voice my displeasure, followed immediately by the door opening to let him out. I have a hard enough time sleepin through as it is. I love this guy, but even though I have nice big litterbox filled with clean litter by the door, he won't use it. I've put him in so he'll get the idea, but he jumps right out. Anybody have a solution? I have considered locking him in for a couple of days until he uses it, but I'm afraid he might do something else for revenge. I once had a spayed female who did the same thing. There were cobwebs on the opening to her box, and she only began using one again when I moved to an apartment that she wasn't used to.