it's amazingly cheap and easy to make a euthanasia chamber thing out of a pitcher, a baggie and some airline tubing. baking soda and vinegar are also incredibly cheap... I had a similar experience that prompted me to create mine, and I don't think I'll go back. takes 5 min with a cup of vinegar&about 1/2 cup of baking soda to get it done. beats whacking them on a table.