The inexperienced dock guy who thinks you need help docking your boat. Dont get me wrong, I like to see people who are happy to attend to your dock and help as there can always be a time when you need it, but, the guy who grabs your line off your rail and pulls like hell on your bow just as i'm ready to ease or walk the boat to the dock on a very calm no wind day. I had a guy pulling so hard on the bow line that actually had to give throttle with port engine in forward and port in reverse ( I was bowing in) to keep my stern from sliding over and hitting the boat next to me! (straight inboard screws) I really appreciate when one of my dock neighbours comes over to help but knows when not to pull on my ropes but also knows in a bad wind when to cleat up the bow line if need be. I tried to very politly tell one of these guys once that pulling on a rope like that is not always helpfull and then show him the proper things to do if one needed help. I also thanked him for his help but he seemed to take offence to my suggestions.