I may be wrong, Kendalle, but I'm pretty sure this is the same one. The time I set him in the field and he came back, I checked some mouse fancier sites. I was told it was common for wild mice, once they found a home they liked, to come back in. Afterward, I was washing clothes and saw a mouse-head staring at me from the entrance to the drain pipe. I traced the pipe to where the water let out, which was under a back porch. I sealed that hole. I live in one of those large mobile-homes I inherited when my father died. He had a mouse problem every two or three years was all, and I live in a rural area. So I don't think there are a lot of holes for them to get in. The manufacturers try to make these places airtight. Unlike a proper home, they're off the ground without much piping underneath. I checked the drainpipes under the house and they were all sealed. That may well have been the only entrance. Also, with Jeff Mouse living with me for around two-years, I've seen him change. He must be an old mouse by now. At first, he was small enough to get through the bars of the rat cage to eat their food (that was before I started feeding him.) Now he's the largest mouse I ever saw, the size of a young rat (probably from the good living.) Like with pet critters, I've found Jeff has his own personality. As a teenager, I had four housemice as pets, so he's not the first I've known. At first, he was into everything, sometimes even the top shelves of closets. I had to mouse-proof them. Now, that activity has slowly decreased until he never leaves the floor, and hasn't for a long time. I can even keep silverware in the drawer again. My underwear drawer stays free from stored food. I recall the time he got into my pantry closet, where I store canned and boxed food. Overnight--literally--he caused about $30 damage. I know it was overnight because It was alright when I took some soup out for supper. The next morning, it was a mess. Jeff had dug into every box and bag on shelves going up over six-feet. Flour, dried beans, cereal, and noodles were scattered around all the shelves and floor. I had to throw all those things away, containers and all, then clean up the mess. The clincher was Jeff. He was on one of the higher shelves, looking down at me. When I grabbed at him, he hopped down, shelf by shelf, to the floor. These days, like I said, he doesn't leave the floor. Then their was the time, while I was lying on my bed one night, when he got bitten by an extension cord. Hearing a scuffle and squeak, along with a smell of ozone, I looked over the side of the bed in time to see him running under a dresser. He hasn't bitten a cord since then. It must have hurt his mouth or teeth, because I noticed he wasn't eating much, only nibbling a little on crackers or the like--enough so I knew he wasn't dead. I fed him milk with some cookie and cracker crumbs soaked in it, for about two weeks, before harder foodstuffs finally disappeared from his food bowls. Up until a few months ago, I had an old cat. The cat, for some reason I never did fathom, never entered my bedroom. I think my father trained it not to. So the mouse lived in that room, rarely leaving. When the cat died, Jeff started roaming the house. Now, since my one rat found out he can get to the floor by himself, he's constantly after me to let him out. Before that revelation, Sasa, like the other two rats, was content to run around on the couch, jumping to my armchair, then onto my computer desk, which has a lot of cubbyholes. Now, he'll almost immediately jump to the floor to explore his new kingdom. I'd like to rat-proof a room to let the rat run around in, but never know just where the mouse might be hiding. So, that's my problem. As for diseases, I'll take a chance with Jeff. I think those are caused by city mice, and not the types that live in rural areas. Here, a sick mouse doesn't survive long in the wild, and lives in a cleaner environment. They don't crawl in sewers or other such nasty places. Like with us humans, it's a healthier place to live (except for predators) for a mouse. Charlie