in a online game what is the worst thing a teammate did to you besides friendly fire. it can be from helping the enemy to not letting you have the health item when you need it alot more then they do. mine would be my second choice on l4d2 when i was about to get a medpack when i was in black and white and i did not have any health items while some guy with green health had taking the medpack. i was the only one who didn't get to the safe house. anyway tell me your story.