Take fall damage or take damage from running into an animal. If the * appears and Treat Yourself becomes the default option, its bugged and Treat Yourself remains the default action with the * up no matter what you do. Commanding a medic to heal you either gets medic stuck in repeating healing loop, pushing you a little each time. Or around 10% of the time the entire client will freeze and crash. I saw this bug before the Win campaign went live but it never caused crashes.