In the United States, variety stores are very common. They sell inexpensive items, usually with a single price point for all items in the store. A guy in the U.S. decided to buy a shower curtain and went to one of such stores: The dollar store where everything sells for a dollar. As he explains: “A shower curtain is a shower curtain, right?”
Well, he was wrong))
The funniest thing is that he even “checked the dimensions to make sure that it would fit”.