A buddy of mine had a mouse problem in his house and bought some of those plastic "easy set" mousetraps. While they are much easier to set than the Victor traps I've always used to, and the risk of snapping your fingers is much less, the downside is that: a) they are more expensive, and b) they don't actually kill the mice! He caught 3 mice with them, all of which continued to wriggle around in the trap until he found them the next day and had to dispatch them himself. Not very effective, or humane. Since he had already bought half a dozen of the traps and still had plenty of mice to catch, I decided to "modify" them to make them more effective! a few razor blades and a little Loctite gel adhesive, and we have a winner!
The "better mouse trap":
And the results:
I'm pretty sure that mouse didn't feel a thing. I will say that after the first 2 or 3 mice, the blade became too dull to cut all the way through, but still did the job.
The "better mouse trap":

And the results:

I'm pretty sure that mouse didn't feel a thing. I will say that after the first 2 or 3 mice, the blade became too dull to cut all the way through, but still did the job.