One of the first gifts I ever gave my future wife was a pair of shoes. Since the size of her feet was not yet second nature to me at that point, you can understand how I could guess wrong on her shoe size. I went back and exchanged them for her. No problem. Then the new pair didn't fit quite right either so I returned to the store once again and exchanged for yet another half size difference. Of course, I didn't know it at the time, but this episode would prove to be a harbinger of shoe buying shenanigans to come. As another example, take this scene from last night...
"I think they are just a little too small."
"But every pair of shoes in your closet that shows a size, shows this size."
"The shoes in my closet?"
"Every shoe in your closet."
"Oh, those are too small."
"Of course they are."