Well, of course, my boys suggested we take it in. I do have the set up so could try to keep it. About 5 years ago my boys found a brown snake in the yard in the fall and we tried to keep it. We did our best but it didn't survive very long. I guess if this garter's chance of survival is slim if I don't, there's not much harm in trying, right? I'll have to brush up on my snake husbandry but with the help of this forum hopefully he'll do well.