Safety Moment - Cardinal Rules...A Good Idea?

We have all seen them, rewards for safety records, but are they a good idea or a bad idea?  This discussion starts to take on this question.  I would bet you know what I think.  I am very interested in what you think. Can we pay people not to get hurt?  Are we paying workers to not be stupid...or are we paying workers to be smart?  The biggest question is does paying people really make your organization safer...or quieter?