A story to start with, probably apocryphal;

Two people had decided to set of on a long cycle tour, round the world, or possibly round Europe. They met at Tower Bridge in London, as that seemed like a symbolic place to start the tour, and set off for Dover, to catch the ferry to the rest of the world. By the time they arrived in Canterbury they were both thinking of giving up. The pain inflicted on their backsides by their saddles was getting too much to bear.
They had a think about the situation over lunch. Abandoning the tour would lead to humiliation. Wandering in to the pub next Saturday night and greeted by their friends with comments such as ‘I’m not sure I could make it round the world that quickly in a 747 let alone a bike’ would have been too much to take. Besides, they had paid for their ferry tickets and wouldn’t get the money back.
They decided to try swapping saddles, and completed the rest of the tour completely free from pain in the posterior.

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