Mr Grainger has become increasingly bad-tempered, something which is not helped by his losing the centre display stand to Mrs Slocombe for "bra week". The rest of the staff agree that he has to go, and when Mr Harman tells Mr Grainger of their decision he resigns first. However, the following day he comes in and apologises for his bad mood. The reason for the change of mood becomes clear when he tells them he has won the pools. He showers his co-workers with gifts and his resignation letter reaches Mr Grace's office, but Mr Humphries speaks to the pools firm and discovers that Mr Grainger has not won anything. Surprisingly, Mr Grainger is not totally disappointed, and he decides to stay on. And then, his unopened resignation letter is revealed, with interesting results.