I had driven past the motorway services, thinking I would stop to pee at the next one... sods law dictated that roadworks were to impede my progress.......and they did... I sat in a queue of traffic, eventually wanting to pee so badly it hurt...... I had Radio 4 on at the time... and they put on a wonderful song which brought back a lot of memories but was also (Almost) apt to my then current situation..... The song... "I can't keep it in" by Cat Stevens.
PS I did make it to the next services..... only just!!!!