About two weeks ago a guy mid 20s came to fix my smoke alarm. Mine a bit different as it is for the deaf. If there is smoke etc alarm goes off and light flashes constantly. Anyway light was going off whether there was smoke or not, so I turned it off at the mains.
Going back to the guy - he came out (2weeks ago) looked at it "no I can't fix that, will have to send somebody else".
He has just arrived and left and said "was I here before - yes said I, "God, those at the office are always making botches".
I said - do you not remember my address - no, only when I was driving in.
I can believe that. He wouldn't have memorised your address or looked it up in an A-Z, just put the postcode and house number in his satnav and tapped 'go'.