There are many reasons why one might want to exchange one's head. You might have been cursed with a head that chatters about trivial things while you’re trying to nap, you may no longer wish to be mistaken for a famous pop-star - or, you may wish to be. You may be hoping to avoid your relatives, or trying to infiltrate the Bearded Men with Slender Noses Club.
For these reasons, and many more, the Floating Head Exchange exists, overseen by one known as the Balloonman. To show the Balloonman you would like to partake in a head exchange, simply touch the palms of your hands to the ground and he will take care of the rest. Over the years this has led to several unfortunate incidents where passersby have tripped over and unwillingly participated in the one-way exchange (and then been charged for it).
Some have suggested that the Balloonman himself may have something to do with the mysteriously trippable objects that frequently seem to surround the exchange, asking him to explain the presence of cobblestone-coloured casserole dishes, mirrored disco balls and rakes made entirely of glass. The Balloonman responds to these accusations with a shake (and a wobble) of his rubbery head and says, his smiling expression unchanged,
“You clearly have a suspicious mind. Perhaps you could do with a new one?”