In a few days they were gone without a trace. Not even a gall bladder. But the sun came out today, the Chairman is tame enough, and it is time he got reintroduced to the world. Out he goes. And back to mousetraps.
Mouse enters trap.
A large juice can and a coffee can will do. Just so they slide freely past each other when you fit them together, telescope fashion. The floor must be left intact. I used a power drill to closely perforate the outline and finished it off with a hacksaw blade and file. As long as you have the drill out, put a few holes in the closed end of the coffee can as well.