Added a book to the sidebar -- Mindless Eating, by a food psychologist named Brian Wansink. I read a blurb about the book somewhere, so I got it from the library, not necessarily expecting much, but I was really surprised. Most of the book describes tests Wansink and his colleagues have performed in order to figure out what makes people eat more than they need to. They gave buckets of stale popcorn to moviegoers, and even though they all said the popcorn tasted awful, they ate it anyway, and the bigger the bucket, the more they ate, even though most of them claimed the size of the bucket wouldn't make a difference. They labeled identical bottles of wine as "California wine" and "North Dakota wine" and people said the California wine tasted better, and in fact the group with the California wine rated the entire meal as tasting better. They gave people a bottomless soup bowl (rigged with a pipe contraption underneath the table) and people kept eating and eating, not realizing it was refilling automatically, and some people ate quarts of the stuff. They served chicken wings to two groups of people, and the people who kept having the bones cleared away ate fewer than the people whose bones were left on the table to remind them how much they'd eaten. There was one story about a military chef who ran out of cherry jello but dyed the lemon jello red and no one noticed a difference.
All that and more... interesting book, although I guess nothing in the book is truly shocking. But I thought it was a terrific read.