Some bloak
Established Member
Just go out at night or better still, on a damp night, armed with a torch and a plastic container and gather them up. You'd be amazed how many you will nab. Make sure the container has a lid and bung the whole lot into the freezer. Don't forget to tell the missus they're in there. A slow but humane end. Do this a couple of times a week and you will make a significant dent in the population. Don't forget to retrieve from the freezer otherwise the stir frys could get interesting.