There is actually a very simple fix to this , run spot checks If you want , anyone caught with company property is charged 3 times the cost of the items but no further action is taken against the individuals . Then anyone can decide if it’s worth the risk . Personally I scoff down 3 hargen das ice creams just before I get off then I have no desire to take anything from the aircraft .or alternatively decant the ice creams into a flask for later consumption , your flask the company has no right to look inside .