all about. I mean...can they really tell if we are crazy? I know a lot of people who fake normal really well LOL

If you are crazy, they can tell. I don't mean quirky, or eccentric, or idiosyncratic, but crazy, psychotic, demented, or developmentally disabled. The sorts of people who really and truly cannot consent to surgery because they are not thinking clearly enough. Otherwise, you are pretty much fine. If you have serious issues, you may be asked to see a therapist for a while, but truly crazy (and there are some) is pretty easy to tell.

The psych eval is to see whether you have an uncontrolled mental illness, the capacity to understand and consent to a surgical procedure, and an idea of what thoughts and behaviors contributed to your obesity and what you might do differently in the future.

Well, I'm glad to announce I am none of those things! Thank goodness! Good to know the why though!