An unsuspecting doctor who extends his or her time with the residency program to educate and represent residents. Part of their duties is to sit in on a million meetings of unknown significance; be expected to fix all manifestations of a violent or destructive natural force, such as a lightning strike or earthquake, that is beyond human power to cause, prevent, or control; and to be the one who is the bearer of all complaints, gripes, frustration, and anger from both residents and attendings when all they need is a stiff drink. Only tough souls apply.