From http://www.jihadwatch.org/archives/024363.php :

Islam is Mirror-World (or Bizarro-World) where everything is the opposite of normal reality. Up is down, right is wrong, and peace means war.

And this is largely due to Muhammad, his example, and the Qu'ran: Because of this matrix, Muslims must believe he was a great example, so therefore:

It's not only allowed, but an "excellent" thing to:

-Own slaves
-Rape the female ones (especially just after killing their husbands)
-Have critics assassinated
-Marry 6-year olds
-Have intercourse with 9 year olds
-Slaughter entire tribes
-Rob caravans
-Torture a man to death to find out where his treasure is hidden
-Hit wives
-Hate dogs, alcohol and music

Those who fail to adhere to the rules of Bizarro-World are not true Muslims, according to the Koran. Fortunately, somewhere between 2 million and a quarter-billion are true, terrorist Muslims.