How significant do you make the consequences of burning fate points.
In the past I have taken a couple of points of strength and toughness to represent long term injury. In our last session a player took the highest energy critical to the leg (something like immolates the target, killing them). If they decide to burn a fate point (I am giving them the gap between sessions to decide) how harshly would you effect them? A loss of fellowship to represent burn scars seems to make sense, but is that enough?