Oh yes, special commendation to gooseberry bush thief :)
Just thought of another couple from my own arsenal - tight as a gnats arse round a cartwheel friend decided she would cook me a birthday meal of one of her curries I'm particulary fond of.
Great, thought I, how lovely, so she brings the curry all ready made just needs to be re-heated after our trip to the pub (half a lager's only on her round you understand) got home, ate the curry, delicious, I walk into the kitchen about an hour later and dig a couple more spoonfuls from the pan with the left-overs as its so tasty.
'Oi, says she in very annoyed tone, don't be doing that, I think she's joking and carry on tucking in (well, it WAS my birthday meal after all) when she hastily grabs the pan away from under my digging spoon, covers it and then actually took it home with her 
The rest is for me and DP tomorrow she announces, adding moodily 'not sure there's enough there now though'
I always fall for it though, last week she invited me round for a pizza and wine evening 'yes, lovely I said' - back comes the reply 'weeell, I have a frozen pizza for myself so if you could get one for yourself and buy the wine then that would be great'