Rat poision mixed with the juicy canned catfood works wonders. I'm sure its not a lovely death, but the mechanism is nicer than antifreeze. Instead of horrible cramps etc, they tend to just have a brain bleed and lights out.
22 is even nicer and you don't have to worry where they are going to crawl before they die and stink up the place.
22 is even nicer and you don't have to worry where they are going to crawl before they die and stink up the place.