I think that's a bunch of baloney. My once-in-a-blue-moon major cheat is a trip to the Chinese buffet. I do not go there to practice portion control, I go there to pig out. Plain and simple.

OK, I do avoid the rice, noodles, & wontons and go for as much meat as possible, and leave as much sauce on the plate as possible. But it's still a very carby pigout. There are no "seemingly subtle differences in behavior" .