How about chocolate pumpkin spiced bark. Melt chocolate coins, sprinkle on sugar, cinnamon, nutmeg mixture while its still warm. Allow to cool, break it up and enjoy.
40 minutes of a screaming child is too much for anyone to handle. The child's parents need to act like parents. After about five minutes I would ask the parents to take care of the child. If they refuse or did not handle it ask them to leave.