The lockkeepers all seemd as bright as always to me last weekend. The keeper at Mapledurham was on his tea break when we got there on Saturday and the people in the hire boat in front of us had no clue what to do. The skipper of the boat behind us did not see the disk because it was on the open gate and I only spotted it because I had a fair idea that it might be tea break time and could not see anyone around.
How about a nice big blue sign with "lock unmanned" on it. Oh - hang on a sec.......