Back to the creative process; one of the stages in the early life of an idea is testing it out loud. The creator often needs to say the idea out loud, let it bounce off a wall and see how it sounds. Some ideas only sound great in your head and those should be kept there. Now a lifeless wall has good idea bouncing qualities, but it doesn't hurt if the wall happens to have a pulse.
Bouncing the ideas of a genius creator is a very enriching experience. You can learn a lot just listening in on a person like, let's say, Assi Al Rahbani at work. The problem starts when you believe that the ideas bouncing off of you are actually yours.
The rest is history, or in this case, attempts at rewriting history.