I started marking my gear with UV pens two years ago. Each RIF has an inconspicuously placed mark that serves to identify it, in case it gets stolen.
Touch wood ? I hope it never happens, but this can help speed up detection and recovery.
Nevertheless, it’s a shame people prefer to steal instead of going to work to earn a few good quid, especially when there’s such a huge demand for low-skilled workers (stealing doesn’t require any skill).
My mate says the company he works for pays £15/hr for picking and they’re short on staff, so may go up soon. It’s the best time to get to work.