This is one of the most important of my new beliefs and it has taken a lot to figure this one out.
I've gotten in trouble in the past because I've thought that I was obligated to eat other people's food.
For example, I went to a workshop this summer where they provided the food. I honestly should have brought my own that trip, while theirs wasn't bad, it was restaurant portions, and I couldn't tell the makeup of the food.
I would have felt better, been in a better mood, and learned more if I had brought my Diet Gourmet food and knew what was in it.
On the other hand, I was on a two day workshop where the food was perfect for someone like me, so you never know.