For the last week I've had a little visitor a field mouse in my home I bought catch-and-release traps but unfortunately they didn't work. Today while changing the garbage bag in my kitchen I looked down and there he was I must have crushed him with the can because he was dragging his back legs like his back was broke. I looked up on the Internet humane ways of euthanization and found this technique . putting in a container with a cup with baking soda and vinegar in it to create carbon monoxide I did it and it seems painless anyone ever tried this for geckos?