If I learned anything in law school, it's that it's dangerous to travel by boat. Two cases are "famous" for illustrating private necessity. One was in Minnesota in 1910 (Defendant damaged Plaintiff's dock by fastening his boat to it in a storm) and one was in Vermont in 1908 (Plaintiff moored his boat to Defendant's dock in a storm. Defendant untied it, causing damage). I always got these two confused. Name either one.
Vincent v. Lake Erie Transp. Co., Ploof v. Putnam