Customer: *brings in laptop and printer* My internet has been terrible lately, so this printer hasn't been working very well as a wireless printer. Could you fix it?

Me: Well, it wouldn't help much because it would be hooked up on our network, so when you take it home it won't work on yours.

Customer: I don't understand...

Me: *thinks for a second* okay, so it's like you have two streams of water. Whatever you do in the first stream doesn't effect the second stream of water.

Customer: I still don't understand....

Me: Never mind. Just go home and give us a call. We'll be able to help you better that way.

Customer: Okay, thanks!

Coworker: You can't cross the streams, Rider!