View the original article at: http://www.nationalenquirer.com/mike-walker/you-always-hurt-friends-you-love
David Schwimmer screamed in pain during a scene where Matt LeBlanc was supposed to block him from entering through a door by leaning against it. But David had his hand cupped around the door's edge just as Matt slammed it once -- and TWICE -- on his fingers! YEEOW! Nothing broke, but David needed 20 minutes to master his pain and finish the scene.