This thread reminded me of the mouse trap I built before retiring at the paper mill. They guys in the shop wanted me to leave it as a legacy when I left and they tell me it is still working flawlessly. It has a laser photo eye that trips a solenoid and drops a door when the critter gets half way into the box. Works with a DeWalt battery.
It catches rats, mice and a surprising number of squirrels. I would suggest you make one for yourself but once you figure in all the parts and labor we estimated it cost Georgia Pacific right around $3000. It was also costly to use because every time it caught a critter then two or three of us in the cat shop had to get in the truck and run up to the woods to let it go. That usually took most of the morning. And you wonder why toilet paper is so expensive!
The first rat it caught almost made it out so we did a little rewiring and repositioning of limit switches and it was never empty when sprung.
I am still waiting for the world to beat a path to my door.
