When I was working at the mcvities biscuit factory, I used to do relief in the chocolate room. Best smelling room in the whole place !
The chocolate enrober used chocolate as its only lubricant - anything else would have contaminated it - and consequently leaked like a sieve. The leakage went into a bag lined tray.
So every 3 or 4 hours there would be around a 7lb block of perfectly sterile chocolate, that they used to throw away.
Until I started working there.
I used to take them home, cut into half pound blocks and freeze.
I even converted one of the chaps in charge of the chocolate to start taking it home.
I'm nothing, if not a bad influence on people
One year I wrapped a whole block up and gave it to my dad for his birthday.
Nearly 30 years later, he still says it was his best birthday present ever