Bad memories stink out the mind like unflushed toilets in the darkest recesses of derelict bus shelters. Bad memories stalk your skull like the mad woman locked in the attic: "Don't go into the brain cell at the end of the cerebral cortex whatever you do." Bad memories are hunchbacked and cretinous, like a character played by Lon Chaney Jnr in a movie that always seems to be on cable. Bad memories gather like dust on the cheap-looking urn that contains the ashes of your dignity. Bad memories are the ominous toads that cursed princes will be turned into. Bad memories practice their trombones at all hours of the night. Bad memories stare sightlessly out of your eyes like the ghost of a murdered child at the window of an empty room. Like the proverbial poor, bad memories are always with us, except bad memories are rather better fed than the poor. Take, for instance, the time you went paragliding at Dover Beach with Matthew Arnold Sports Tours: that bargain harness was really just a false economy wrapped up in a rip-off disguised as a free coupon, and it was quite painful, if I remember correctly.