“The network cable isn't working? Here, try this one.”
“Nope.”
“Well, the network light on the hub is flashing like there's traffic.”
“But Windows XP isn't seeing the network.”
“Did you try ipconfig?”
“There. See?”
“Dude. Try booting into Linux.”
“Ha! Microsoft Tech Support here. Network not working? Boot into Linux.”
“Hey! It worked!”