Sabrina Reyes has never been good at sharing. She wasn’t good at it in the second grade when she was told that she had to share her doll with a girl in her class and she wasn’t good at it her senior year when she was told that there was a tie between her and another girl for prom queen. Her response was the same in both instances – slap them across the face until they ran away crying.

Unfortunately, as an adult, this method is usually frowned upon; because of ...