Just thinking about self defence and the law. Any good practical-based club should include some advice on legal issues and I think people with a practical training background are aware of the lawful and legal principles of self defence and the use of force.
But what happens if say, a student is taken to court for use of excessive force in a situation, but then sues their instructor for teaching them inappropriate techniques? Is the instructor negligent for teaching potentially dangerous methods without first making students aware of the principles of excessive force? Is the instructor responsible for the student's unlawful actions?
For example it is common to teach a takedown followed by a "finishing move" such as a reverse punch or stamping kick. In some situations this finishing move might be considered excessive. Could a student convicted of using excessive force from a finishing blow seek damages from their instructor for teaching the move?
I don't have any specific cases in mind, I'm merely asking the question out of interest and curiosity. Has anyone come across such a situation before? Understood this is not the place for offering legal advice, it's just for general discussion.