Primitive Screwhead said:I too like this since it puts the choice into the players hands..
"The immunity would also apply if you run away but come back, because the spectacle of someone running, coming back, then running again, is just a bit silly."
Depends on how you narrate it. Joe the fighter runs away and hides behind a boulder. He huffs and puffs, focuses himself and says a prayer to Grog to protect himself.. reinforced by this mental preparation he bolts back into the fray...but is overcome by the sight of the Dragon rending Fred in half and jumps back behind the boulder into 'safety'...
Now, perhaps the second exposure increases the DC to recover...meaning its less likely Joe will be able to muster up the courage to try again..but a valiant hero just might try.
This is okay the first 2-3 times it happens. After that, it's just silly.