if you feel you can't control yourself, don't go. But, I recommend eating something healthy before hand. Fill up on that. I'm sure at the cook out they will have veggies and fruit or something. Eat those (a lot!) and if you must, only have a little desert. take a 1/2 piece, rather than a whole;-) But if you are sure you will go back to your old ways, don't go. Tell em you're watching what you eat and you don't think it's a good enviorment to be in. Or make up something else;-)