A few years ago at the Tandem Club annual rally in Derbyshire, yellow-ceitidh was sleeping above the drivers cab in our camper van. At about three o'clock in the morning, I was woken up by a rhymic knocking sound coming from inside the camper van. It was yellow-ceitidh pedalling in her sleep and kicking the roof of the camper van. That's how know yellow-ceitidh had been cycling too much!