It's rude to act out against your babysitter.
Ken hired a new babysitter to help him with his kids but the babysitter did not put the kids to bed at 8 pm.
Ken wants to respond to the babysitter's failure.
Ken tells the babysitter that the kids were not in bed by 8 pm and that he would like this to be resolved next time.
Ken raises his voice against the babysitter over her failure to get the kids in bed by 8 pm.
The babysitter continues to work for Ken and gets the kids in bed by 8 pm next time.
The babysitter never works for Ken again and Ken struggles to find another babysitter.