Take a look! I changed the desktop buttons to link to a YouTube video! 
It wont be like that perminatly, when you shut down or reboot the Apple Store Macs they are "reset" so it will back to normal in a few hours when the store closes! No harm!
It wont be like that perminatly, when you shut down or reboot the Apple Store Macs they are "reset" so it will back to normal in a few hours when the store closes! No harm!