One of the worst VLK experiences we had was a few years ago, entering Stoke Bruerne Top lock. A boat had just come down, but hadn't seen me in the pound waiting and shut the gates. So my wife started to push the gate open for me to enter. Gate was half open when a lockie started winding the paddle wide open at the top gate, not even looking back. Sue tried to stop him, but he just continued, insisting its his lock! Damn lucky she didn't get knocked over by the gate slamming shut.
That guy's no longer there, and I must admit the lockies on that flight are pretty good these days, always asking before assisting.