Troubleshooting the Past

GTG> Grumpy Tech Support. How may I help you today?
User> Yeah, about three weeks ago I was at the airport and I couldn't connect to their wireless network. I'll be going back to the airport in about two weeks and I'd like to connect.
GTG> Three weeks ago?
User> Yeah.
GTG> You want me to fix your wireless connection three weeks ago?
User> Well no. I want you to fix it so I can connect in two weeks.
GTG> So you don't want me to fix your past connection, but your future connection.
User> Yeah.
GTG> Are you at home? Do you have a wireless setup at home?
User> No. I'm here at the office plugged into the big network.
GTG> I tell you what. Call me when you get to the airport in two weeks and we'll troubleshoot your connection then. How's that?
User> Well I guess that would work. Hopefully you will have time to get it working in between flights. I just thought you would have more time to do it now.
GTG> Yeah, well it's kind of hard to troubleshoot something that won't work even if I get it fixed. You know what I mean?
User> I guess that makes sense...
GTG> Sure, just give me a call once you are at the airport and we'll get it fixed for you.
User> Well, ok then.

Have you ever called your roofer and told him to go fix that leaky roof on that house you are planning to build next year?