I think maybe, I think maybe ...

I was standing in line at the grocery store and noticed the man in front of me had duplicates of all his items: two Frosted Flakes, two pies, two cocoa mixes. I thought maybe he was having company with exactly the same taste. But then the cashier asked which bag he wanted, and he said, "Paper's fine. Paper's fine." Then I got it. He has OCD and has to say/have two of everything! He probably shops a lot of two-for-one sales.