My colleague tells me she once worked with a nurse who suffered a fear of buttons. I'm not making this up. I didn't ask how she managed to help patients put their shirts on. She couldn't even stand to hear the word 'button'. Once, someone at work jokingly started to sing the theme song to button moon (above) and she ran from the room screaming. This fear is apparently called koumpounophobia. It seems that sufferers are particularly nauseated by buttons hanging by a thread. I wonder if there is an evolutionary cause for this kind of bizarre phobia. Are they the unwilling puppets of some atavistic subconscious mechanism which misidentifies buttons as repellant parasitic insects?