Unfortunately, the number he was dialling was engaged. `Someone might be trying to nab this spot before me.' he conjectured, and resolved to stand there on guard staring at the poster, questioning the passers-by and all the time waiting for the engaged tone to stop. And he waited and he stared and he stared and he waited and gradually he began to change, in the way that single-minded people do. His legs merged together from lack of being separated, his arms became a frame around his neck for holding a phone from lack of being used for gesticulation, affection or veterinary science, his eyes went blind from lack of seeing anything other than what was in front of his nose, and his mouth became stuck in an open position because his mind was stuck in a closed one. Eventually, all that was left was an intestinal tract with a strange rectangular ruff, its original purpose ground down to an unthinking hostile instinct, and that's how it remains today. Wise and brave locals have longsince blanked out the poster and removed the mobile phone in order to prevent this tragedy recurring.
The irony of the whole story is that the poster site was, in fact, the property of a company which had been taken over several years previously by Mr Clegg's employers and had been sitting there unsold for so long that nobody knew about it, mergers and staff turnover in advertising being the way they are. The enquiries number at the bottom of the poster was consequently redirected to the new company and subsequently reredirected to the mobile phone of that afternoon's duty salesman...