My MacBook Pro came with "extra rubber" on the right side of the display hinge, the same that's used for the rubber around the screen. It was randomly glued on to about an inch or two of the display hinge. It wasn't a line of rubber, more like pieces. I got some off with my finger and the rest should come off with water, though it's weird for such an expensive machine to have problems like that. I'm not going to complain to Apple for something that I can get off myself, though Apple's build quality standards need to be improved...