Too much of a hypothetical to give a real answer to that, imho. I do not think it is immoral to protect your savings or property if someone has gone to the leng

Too much of a hypothetical to give a real answer to that, imho. I do not think it is immoral to protect your savings or property if someone has gone to the lengths of violating your safety by breaking in to your home. If you know and recognize them, and you're familiar with them, you would probably know well enough to know that they are not a threat and didn't break in with the intention to hurt you. But all that goes out the window if you happen upon an unexpected stranger in your home in the spur of the moment. With a wage thief, it's not an action that could directly threaten you. You would be making the choice to go well out of your way to cause harm to them, it'd be premeditated violence. And I would hope no one would choose to do that.