A woman rings at the neighbor’s door. A man opens the door.

Woman: “Hey, I just moved in, and I am just applying wallpaper in the kitchen. I just saw yesterday that you freshly papered you kitchen as well, and I thought you may be able to help me out. How many stacks of paper did you buy to do the job?”

Man: “Well yes, of course! I bought 16 stacks of paper.”

The woman thanks to the man and goes on to buy 16 stacks of paper. When she was finished with the kitchen she returns to the neighbor.

Woman:” well thanks again for the advice, I am done and the new kitchen looks awesome! I am just wondering, I still have 6 stacks of paper left…?”

Man: “Yeah, me too.”