Okay, first.. in response to the hunger and water thing, you are right on. My Dr. even explained to me that sometimes when there isn't anything in the stomack, or if we get hot and sweaty, our bodies interpret lack of water as hunger. When we drink water, the body accepts that and you aren't hungy (or as hungry).
Also, and this simply comes from the fact that I am a science teacher... thus, a science geek, if you drink cold water, your body uses energy to warm it up in the stomach. Thus, in a way, you burn calories by drinking cold water... lol.
As for the pudding thing... I'm with you on the banana.
Keep up the good work.