that does suck,,, I keep my reptile door closed at ALL times, and adjust temps in the room as necessary by whatever means to keep a more stable enviroment. We have 2 dogs and a cat in the house also, and even when were working in the room, there are no other animals allowed in the room. ALso have door sweeps on the door to make sure that IF there is an excape, it wont make it beyond the snake room.
Even with all the defence in the world though, sometimes things just hapen that we have no control of. Its not your fault, live and learn.
spooky