I had a friend who worked at burea office of a television station. There was a
student doing job training there. The main office needed a copy of a script.
Student: What should I do?
Friend: Just fax it to them.
Student: But what will we use?
Friend: what do you mean?
Student: Well if I fax our copy, we won't have one right?
Eventually, my friend came around to the conclusion: the student thought fax
machines physically teleported pieces of paper between destinations!