Free gifts to employees
Reminds me of when I were a lad ... I was told (but I haven't checked snopes) ...
A worker at a chemical plant in Middlesbrough was allowed by the foreman to take home a piece of perforated shiny scrap metal with that looked just right for sieving his garden. Sure enough, when ICI bods turned up to reclaim it, he was actually sieving his garden soil with it ... a piece of platinum catalyst worth considerably more than his house.
The story goes that he returned it, the foreman got a mild ticking off, the employee was given a large high quality steel sieve for giving it back, and the process for tracking the catalysts was substantially improved.