I make them do a special little acting under fire roll where the fire is they have absolutely no idea what they are doing.  If they ace both the Act Under Fire roll and the Angel Kit roll, they are good but if they screw one or the other up bad things happen.  

If there isn't anything resembling a full blown Angel Kit, it's an Act Under Fire with a full hit needed to stabilize them without things going horribly wrong.  And even on a hit they stabilize at basically but not totally dead.