A guy I knew told me that he suspected that his neighbor was stealing firewood from him. The neighbor denied it.
The guy said he drilled a 3/4” hole in a piece of wood and stuff a 12 gauge shotgun shell in it, then used wood filler to plug the hole. He then put the piece in his woodpile.
While the neighbor never admitted anything, his wood stove was in the trash a week or so later
Lol Good for that guy.