Told he has a brain like a broken colander, Dudley reads a book given to him as a birthday present by Duncan which purports to improve one's memory. Muriel reminds him that they have offered to help out at the St. Jude's Girl Guides garden fete on Saturday, and he is to be in charge of the most important stall, holding the super prize; a brand new car, loaned by the local garage. The chance of anyone winning it is four-million-to-one against, but just in case anyone does win, they've insured against that happening. Susan, meanwhile, is trying her hand at market research interviewing and decides to start with her father. She is persuaded to attend the fete, and her mother gives her the insurance application to post. Susan palms it off on to her sister Jacqui - who is likewise suffering from absent-mindedness - who in turn gives it to her father. Dudley goes to Duncan's office, where his boss informs him that he can't come to the fete as he's going to a race meeting at Ascot. He has some