Sorry for the confusion... I simply meant to gas a chicken when it is a sick / injured chicken and you aren't able or don't want to do it via an axe or other messy method. If you are eating your chickens, you are correct, you'll want to use other methods.
BTW, in searching I found this other similar device: http://www.crittergetteronline.com/
BTW, in searching I found this other similar device: http://www.crittergetteronline.com/