When I was in college, I needed to connect to the school's network from my own computer in my dorm room. I knew there was a dial-up number that would allow me to log in and run limited commands. All I needed to know was the number. So I called the help desk.
Me: "I'm trying to access the University's network from my computer in my dorm room. Can you help me?"
Help Desk: "Which lab are you in?"
Me: "I'm not in a lab. I'm in my room."
Help Desk: "Then you're not on the network."
Me: "But I want to connect over the phone line. What number do I need to dial?"
Help Desk: "You need to call [phone number of help desk]."
Me: "No, that's your phone number. I need a dial-up number for the computer."
Help Desk: "I don't understand. What are you trying to do?"
Me: "I want to connect my computer to the school's network through the dial-up."
Help Desk: "Why don't you use a computer in the lab?"
Me: "That would defeat the purpose of having a computer in my room."
Help Desk: "Well, your computer is not connected to the school network."
Me: "I know! I want to use my modem to connect."
Help Desk: "What's a modem?"
Me: "Never mind."