Here are some pictures taken of Mark in his cow costume yesterday. Mark had a Halloween party at school in the morning and then he went trick-or-treating at a few houses around the neighborhood. Mark was really interested in the trick-or-treaters who came to our door. At one point during the evening, he walked outside and waved at them as they left. We served candy outside for a little while since Mark enjoyed waving at the kids from the front door step. He also enjoyed taking his treats out of his pumpkin and putting them back in again.