h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Working on an Internet Service Desk isn't always fun and games, many customers aren't nice people, through strenuous research I have narrowed them down to three catagories, (there are many other grey areas as well but for arguments sake I have catagorised them) Firstly is the complete novice: They react well to help and are always eternally grateful to you for helping them type in a search entry.
Secondly (and by far the worst) is the person who thinks they know a lot but only know a bit: These are the worst for the simple reason that they aren't affraid to change things on their computer (not always a bed thing) but don't know why it goes wrong when they delete a vital systems file. Then, to make matters worse, they will fly off the handle when you imply it is their fault.
Lastly the computer nerd: This is the person who simply wants someone to talk to as they re-install theur entire operating system and hack into the Pentagon. (The solution to this problem is always, open the window leave the house and get some friends.)
 

Be careful what you say about hackers. You might just insult one who is ether bored or is having a bad day.

Hakers are fine, it's the ones who need some sunshine who annoy me.

Whoops, I meant "Hackers"