a gender study.

The kids are playing house. She's the mom.  He want to be the dad.  The girls don't want him to be the dad because "We enjoy being responsible for own babies.  We don't want help."

He says: "I can be the dad if I want to."

She counters:  "Fine.  Let's eat dinner."

He responds:  "No, it's not dinner time.  I'm the dad.  I get to decide when we eat."