petty scam by condor ferries (calling hamurabi); near death by exhaust fumes

My second breakfast on the Condor ferry from Poole to Guernsey this morning would have been around 7 GBP.  Then it was around 16 GBP.  I looked at the screen to see what was up.  The employee said something like "when you're ready", pretty aggressively, to apply pressure.

I found the mistake, two fake sandwiches at 4.50 GBP each, resulting in an overcharging of 9 GBP, or around 129%.  I said there are things on there not on my tray.  Employee listed a load of breakfast items, aggressively.  I asked where are those sandwiches.  Employee realised their "mistake" and apologised and removed the items, and did not look up again for the rest of the transaction.

Similarly for adding fake items as with short-changing: if a vendor makes a "mistake" that would favor them by +X, it is not good enough to rectify this to favoring neither party by zero.  The correct remedy would be to favor the other party by X, and the vendor by -X.  

If the vendor takes a course of action that would lead to them incorrectly benefiting by X at the buyer's expense, and this is caught, then for the penalty to fit the mistake, the vendor should be penalised by an amount X, not by an amount zero.

This is why "double damages" is exactly the right amount: once to rectify the amount to what it should have been in the first place, and once to penalise the error by an appropriate amount, with the most appropriate amount being the exact amount the error was for.

On my 7 GBP breakfast overcharged by 9 GBP to 16 GBP, this should have resulted in them giving me 2 GBP overall, not in just in them taking the 7 GBP as tho they had never tried it on.

My other observation about the car ferry is: the car drivers appear to be trying to commit collective suicide by exhaust fumes.  There is a suicide method where the perpetrator loops the exhaust back in thru a window.  That's basically what happens on the Condor car decks, which are enclosed.  It's bad enough in the vehicle queues before boarding, which are not enclosed.