My spider always got out but never lost her ... but my boy pastel I didn't lose I got distracted and when I remembered he was gone ... I thought he went out side I looked everywhere some how he crawled back in the snake room and hid behind the rack .. when I found him it was like 2 weeks later I never thought to look there .. it was a bad couple of weeks I felt horrible to the point I thought I shouldn't even own anymore .. but it was a tough lessened learned and since then I make sure when I have one out my main focus is on them ... ... if u lose a snake look in warm places and vents ... and inside stuff they don't go far