Movies where the lead actor did their own stunts are always either “the director forced them to stand in freezing water for fourteen hours a day while periodically throwing rocks at their head for the sake of ‘authenticity’ and they got PTSD and almost died” or “they insisted over the explicit objections of the production’s insurance company that they be set on fire for real because it would 'help [them] understand the character’s motivation’” – there’s absolutely no middle ground.
Though sometimes an actor goes from one to the other in the course of their career. Jackie Chan was firmly in the former camp when he started, then became the latter by the time of the Rush Hour movies.
But even then, no middle ground.
Jackie Chan’s a complicated case because he was directing some of this own films as early as 1980, putting him in the position of simultaneously being the unhinged director torturing his lead actor and the lead actor being tortured.
Union-mandated meeting between director (yourself) and actor (also yourself) about the film’s safety protocols