Mine has escaped twice. The first time he was gone for 2 months. I had given up hope. I had even moved to another apartment. Then I got a panicked tenant who moved in after me. She said there was a snake in the apartment. I ran there and fond him very cold and scarred by what I can only assume was either rodents or hot pipes. I held him close to me and warmed him up. He healed and is very healthy now. His scars are barely detectable. The second time he escaped I faound him a few days later in the bathroom on the wicker shelf. The wall heater was on in there. I think that drew him in there. Now I have barbells on the lid of his enclosure and he hasn't escaped since.