You have no idea how true that is.....I am a firm believer in having a phone based IQ test before the caller gets to speak to a real person. Most calls are what we call ID TEN T errors or commonly known as ID10T's.
Sledge you also forgot PEBKAC

yes being in Retail Service ( for Apple Computers ) I have deals with some good ones
also you forgot to add Bogan to your list