SusanB - an "on"-"off" switch would solve it all for me too ! The cue for my "on" switch is the clock, 3 hours I eat whether I'm hungry or not, most times

. The "off" switch is, measure and weigh and eat only in my plate, most times

... This can be very very difficult to do in restaurant situations... So when I'm in a restaurant I order the best I can, no dressing, no rice,
before it arrives to the table...
Meg -- That article made my jaw drop! I have a niece that is very very close to what they describe:
Quote:
First diagnosed in 1956, it has several features, including reduced fetal activity in utero, poor muscle tone at birth and feeding problems in infancy. Others may include underdeveloped sex organs, short stature, small hands and feet, and skin and hair color that is a touch lighter than everyone else's in the family. PWS children typically have developmental delays, and most have some form of cognitive impairment.
.... and she also cannot stop eating, will eat and eat and eat, till you tell her "Ok, 4 hamburgs are enough, don't you think?" The thing she does not do, that I'm aware of anyways, is sneak foods either by hidding, stealing or ordering behind everyone's back... But she does have a bottomless pit appetite...