A neighbor of mine used to steal the Sunday paper from the doorstep of my apartment. I got there first one morning and read the paper, then took a bunch of junk mail and stuck it in in place of the comics. Then I put about a cup of flour deep into the paper. Sure enough, the paper disappeared. Wish I’d been there when he popped his prize open.
I knew a guy who suspected his neighbor of stealing firewood. He drilled a large hole and inserted a shotgun shell. The neighbor never said anything but the next week he replaced his woodstove