Quoted from dementedwarlok:I do remember playing I believe a adams family as a kid and the knocker went off scared me thought it broke stopped playing pinball for along time
LOL! The first time the knocker went off while my wife was playing,(Williams F14), she let out a yelp and climbed the invisible ladder to get away from it. That thing has the loudest knocker of any of my pins. She has since claimed it as "hers".