weve just returned from party where ds2 whos cows milk intolerant and vegetarian was playing parce the parcel and got a chocolate which he swiped before i could get to it so i know were probably in for 4 days of runny bum!party food was mostly dairy and meat except carrot sticks,raisons and grapes so he had that.hes 2 so doesnt know yet that the dairy is what makes him get poorly belly,what do you do?also would it be rude to take little bit of own food similar to party food?