Ah..... the hi-vis vest. When you put on one, it gives you a force shield protecting your pink squishy body.
There is a similar effect for motorists. If you park where you shouldn't, even for "just a couple of minutes", put on your hazard lights. This makes your car invisible to traffic wardens and enforcement cameras.
[Disclaimer to those of a gullible nature who have inadvertently wandered onto this site: these comments are provided for entertainment purposes only. No claims will be accepted if by following the above, some misfortune should ensue].