Shambles you are a swine.I spent ages trying to remember where it came from (you know that irritating feeling where you just can't quite get it - but know you're close).
then. finally. It came to me. I had been thinking of the Postman Pat theme!!!!! (Pat thinks he's a very lucky man....).
What's worse is, it's in my head now.
(I am assuming this is not the right answer.....)
Kris