Jacob's best friend is turning 5. We love this kid. He is a fantastic kid with a great mom, and Jacob begs to play with him daily. His mom sent out this great invitation for a Superhero birthday party, the kind that make the rest of us mommy slackers look bad. It's going to be a great party. There's just one problem. It's on Sunday. These people are, obviously, not Mormon. We went to the party last year, which was also on Sunday, and I think we are going this year, too. Yet even though I know my kid will love it, and everybody will have a good time, I still feel a little weird about it. We've become great friends with this family, and I'm sure they would understand if I told them we don't have parties on the Sabbath, and yet, I also feel like they might feel a little betrayed, and I know the boys would feel more than a little disappointed. Any thoughts on how to work around this conundrum? Anybody else face this problem in non-Mormon communities?