Had my first flat of the year today. I stopped at the side of the road to put a new tube in, having got the wheel off, and the old tube out, I lent the wheel against the fence, while I tried to work out what the cause of the flat was on the tube (failure by the valve). Fault found I pick up the wheel, and discover what kind of Fence I had lent the wheel against. Somewhat shocked by this discovery, I drop the wheel, which starts down the side of the dijk towards the water. Fortunately, it landed on dry land.
I suppose this was a lesson I needed to learn at some point... Ow.
J