A slippery slope......you'll be snaffling a bottle of Gin next.
Never tasted Marmite. What are you supposed to do with it? :confused:

I was once in the OZ lounge in ICN and saw a man put what must have been a 2kg block of cheese into his backpack. The mind boggles. This was just regular cheddar type cheese so essentially a relatively low value product that was not going to do well with the hot humid conditions during the hours it would be before he got home.

put it in the gin ?

Hiddy !!
I am sure Pucci will be along to explain more about this delectable spread shortly.
If you are very lucky she may even demonstrate its use personally by applying exactly the correct amount to a piece of hot buttered toast for you to try.

I find it goes nicely with lettuce and tomato in a sandwich.

So it’s OK for a regular flier to take a packet of crisps once a week, say 50*30p, but not for someone to remove a single bottle of wine once a year? Discuss (although it’s probably been discussed already)

No - I don't suppose that you have. That's because you came into this world before Marmite was invented.

You misspelt bin... :D