Nothing wrong with eating them. You are feeding them after all.
You need one of these. They check in but they don't check out
View attachment 40564
Here's one I made out of some cage wire. Not hard, just need a few hours & some springs:
View attachment 40566
Or you can just buy one from this dude: http://thetrapmaker.com/bfoxtrap.htm
Better them than coons.