Me: “Hi, how can I help you?”

Customer: “I want to buy a PS3.”

Me: “That’s great. Which one would you like?”

Customer: “What do you mean?”

Me: “Well, I have an 80GB and a 160GB available.”

Customer: “What does that mean?”

Me: “One has twice the memory of the other.”

Customer: “What does that mean?”

Me: “One system can store two times the amount of data as the other.”

Customer: “What does that mean?”

Me: “The 160GB system can hold twice the amount of songs, videos, and game saves.”

Customer: “Well, what is the difference between the two?”

Me: “One system has twice the memory of the other.”

Customer: “Can they both play PS3 games?”

Me: “Yes, sir…”

Customer: “Then what is the difference between the two?”

(This went on for a while. He ended up buying an Xbox 360.)