Single Interest Insurance
  
Insurance with a one-track mind...just like a 20-year-old on a first date.
Actually, it’s insurance that only cares about one person (again, like a 20-year-old a date).
You own a hunting cabin with your sister. However, you can't agree on which insurance company to use. So each of you decides to get your own single-interest insurance. The policy you get only insures you...your sister isn't covered. She has to get her own separate insurance. If the cabin burns down, your policy will pay you for your half of the property damage. Your sister will be on her own. The insurance only covers a single interest...yours. Hence the name.