I remove one of the kittens from box I keep outback near the logs and bring it inside.
I use a lawn knife to cut off his hind paws and it's tail.
Then I take a knife and cut it's head off.
This helps me remove myself from the sentimentality.
I used to dress in clothes i bought at the Army Navy store to harm small animals.
To gear myself up to help me view the operation as if from afar.
To view life as might a researcher.
It began with rats and mice I bought at a local pet store.
But as the targeting went on I felt I needed something softer. More "human" somehow to hurt.