Security also kidded me when I brough my baby food jars in to the park. The bag klunked onto the table and he wanted to see what was inside and proceeded to want to pretend to eat the bannanas and cereal. I had to keep him away from DD because if she so much as saw a jar of food, she needed to have it immediately!
I carried 3-4 bottles of water a day to drink and to make up bottles. We also brought snacks like goldfish and such but we found that they did not each as often as we thought they would. There was to much to see and we even had to remind the older DD to eat at meals!