During my day job I confess that I am seriously afflicted with SMAD. It is important that folks feel comfortable during their time with me so I chat up silly things and tell stories. Usually about the dogs or about sewing and sewing machines. Universally I hear
Them "I have an old sewing machine but it doesn't work any more."
Me "When was the last time you changed the needle?"
Them "Oh I don't know."