A grandmother gives her grandson directions
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A grandmother gives her grandson directions, "Once you get to the building open the door with your elbows. Once you get to the elevator his the up button with your elbow. I'm on the third floor so you're going to have to his the number 3 on the elevator with your elbow. Then once you get off I'm the first to the left, just hit the doorbell with your elbow."
The grandson replies, "That sounds easy enough, but why with my elbows?"
The grandmother says, "Oh… So you're going to be open handed?"