On our way home (after a time-out for accidentally flicking gravel up onto a nice elderly couple's table!) we had to change a tire. I tried to show off to Dave just how competent I was, and in so doing forgot the critical step of making sure the tire wall didn't have anything in it to RE-POKE the tire and flatten it. Aaaargh. (Jenni - I thought of you here - you'd never do something that dumb!) So Mr. Dave took over with his able assistant.