A Jewish grandmother is giving directions to her grandson who is coming to visit her with his wife:
“You come to the front door of the apartment complex. I am in apartment 12D. There is a big panel at the front door. With your elbow push button 12D. I will buzz you in. Come inside, the elevator is on the right. Get in, and with your elbow hit 12. When you get out I am on the left. With your elbow, hit my doorbell”.
“Grandma, that sounds easy”, her grandson said, “but why am I hitting all these buttons with my elbow”?
“You’re coming empty handed?”
Image used under a Collective Commons License from https://www.flickr.com/photos/jewishwomensarchive/7000006891