So, what happens when you are as positioning crew dead heading home, aircraft delayed due tech reasons for lets say 2+ hours and there is a "Free Bar"?
You can't partake of a small libation as you are in uniform (company regs etc, about drinking in uniform)
So you except said offer, of lets say a couple of miniture brandys and place them in your flight bag for later.
Are you now in breach of any law ?
Theft or Duty and Excise ?