Talking of things to carry ... here's 2 perfectly LEGAL things for safety & protection.
Let's say it's being caught ' RED handed'
https://www.amazon.co.uk/Defence-NOY...s%2C211&sr=8-4
Then of course there's the alarm siren which will deafen them.
https://www.amazon.co.uk/Vantamo-Per...Y2hfYXRm&psc=1