Me: “Yes, how can I help you today?”

Customer: “Well I need one of those things that go in back of my phone. What’s it called?”

Me: “I’m not sure what it is, ma’am.”

Customer: “Oh yeah, I remember what it is. A stem cell…”

Me: “A what????”

Customer: “You know, a stem cell so I can make calls…the little card thing…”

(She was thinking of a SIM card; I died laughing when she left!)