@Angel23,
It is the same theme as your other issues at work, Angel.
Behaving inappropriately in the wrong place at the wrong time.
If you want a photo with a Santa, find another way other than barging into an event that is supposed to be for children.
If you want to dress up and go trick or treating, throw a party or go to one of the many organized costume contest events for adults, not barge in on trick or treating intended for children.
If you want to color with crayons, do so and don't worry what others think about it. Do it without competing with the children for family approval.