GMH wrote: it's like the movies isn't it? People stuffing buckets of popcorn down, I bet they never ever eat popcorn anywhere else. I'm stubborn and have always refused to be part of the pack, especially when it comes to anything illogical

:-):-) read Dr Phil's Ultimate Weight Solution, he would say watch tv on your treadmill or have a bath or go for a walk, anything incompatible to eating crap.
Very interesting topic, @GMH, in so many ways.
I firmly accept that there's an endocrine response to food that drives hunger for many of us. There's also a 'conditioning' response to food of the sort that Dr Phil or the psychologist Gillian Riley (amongst others) describe.
I've just posted a lengthy screed about a frequently recommended book by Josie Spinardi in a thread about over-eating on non-fast days:
5-2-diet-chat-f6/eating-days-are-my-downfall-t13192.html#p203320In other IF forums, a book that is frequently recommended and praised on the topic of hunger/over-eating/the addictive desire to eat and how to control them is Gillian Riley's
Ditching Diets (DD). Apparently, DD has a lot of practical advice about not only understanding what it is that you want to achieve, and motivation for it, but how to distinguish hunger from an addictive desire to eat etc.
I haven't read the book but the usual example is that if you're not hungry but always buy popcorn, a hot dog etc. at the cinema - you're eating because you're conditioned to eat in that context and are probably experiencing an addictive desire to eat. There's a nuanced distinction between the concept of food addiction, with which Riley doesn't seem to agree, and an addictive desire to eat.
Anyway, she argues that some people need to acquire new, healthy habits and stop reinforcing conditioned responses related to food, such as over-eating at the cinema. She constantly emphasises that what/when/how much we eat is our free choice - and sometimes our choices may lead us to over-eat or eat something that makes us feel wretched but it must always be our choice made with full awareness of the likely consequences. And with the knowledge that sometimes we choose to over-eat or collaborate with an addictive desire to eat - and that's fine.
ETA: I got lost in my own point. Where Riley's book possibly diverges from Dr. Phil is that she argues avoiding your trigger situation (e.g., eating at the cinema) or substituting another activity (e.g., treadmill rather than snacking while watching TV) can only take you so far. We have to learn to experience an addictive desire to eat in a familiar context and be comfortable enough not to act on it - in that way, we can gradually extinguish that conditioned response and create a new habit.
I've collected so many soundbites from the book that I really should purchase it at some point. I think Riley's website
Eating Less
has an archive of free newsletters to download and people seem to find those useful.