I got pretty startled today, while making Gump Bread dough for cinnamon rolls. I made the dough as usual, set the 15 or so years old basic Kitchenaid stand mixer to kneading the dough and went 5 feet away. It started sounding funny, so I went back over there- and the motor head fell off the stand and went oscillating wildly around the counter! That dough hook was flailing all over. It wasn't possible to get to the switch, so I pulled the plug on it. The pin through the "neck" of the stand had completely fallen out, allowing the motor to do it's own wild thing. I put that sucker back in with the assistance of a tack hammer, and the rolls are in the oven. My heartbeat has almost returned to normal. Check your Kitchenaid!