Mess with me and I'll do my best to ignore you. If I can't ignore you I'll leave. If I can't leave and can't ignore you and you're doing your best to hurt me or mine, I'll hurt you, perhaps fatally.

You can take my money and possessions; things can be replaced. But touch my person or that of someone entitled to my protection and you're going down.

No, I don't need a gun to do that either. Everything is a weapon if you want it to be and have the will to use it.