Every Parent's Nightmare--You leave you child for a sleepover and she dies
Parents left their 14 year old daughter with another parent for a sleepover. The host parent promised to supervise and enforce the rule that "my daughter is not to be driven by any young male drivers. This is the rule we have at home."
The promise was made, then broken.
You can read this very sad car accident case from the Supreme Court of Virginia here.