The good, old-fashioned police truncheon (often called a baton, nightstick or billy club in the USA) was no slouch at quieting restless individuals. It has a rich and storied history, sometimes favorable, sometimes notorious, usually depending on which side of the truncheon the historian was standing at the time.
The Truth About Knives has brought us a couple of historic videos of how to use this implement. Recommended viewing.
I have one handy near the front door, just in case of need. Oh - you ask where you can get them? Modern substitutes are freely available at low cost, both online and in auto parts stores. Useful, that. They're often not legal to carry outside your home, so check your local laws and regulations. I have one in my vehicle, too - to check my tires, of course. After all, that's its purpose. It says so, right there on the shaft!