Stick a whistle on it and you are completely invulnerable.
> Stick a whistle on it… <
Yeah. That’s what the British police officially suggest for self-defense. Not a firearm or pepper spray (both are very illegal), but a whistle.
Heck don’t even carry a baseball bat that you just bought. That’ll get you arrested PDQ.
https://www.ibtimes.co.uk/police-tackle-man-sealed-baseball-bat-manchester-1813153