They say that when you seek revenge, dig two graves.
Because most villains have an accomplice.
Or, if they don’t, there will probably be a witness when you get revenge.
And you can’t leave any witnesses.
“I didn’t see nothin’,” says the witness. “I ain’t telling nobody nothin’.”
Yeah, right.
You know what’s better?
Make them dig their own graves.
The worst that can happen is that they say no.
But if they do dig their own graves, at least they save you the effort.
Sure, you’ll need two shovels.
Unless you want them to take turns, that works too.