they wouldn't hurt him physically on camera but there was active hunts for him and they did the japanese thing of going "HUH! HUH! NEEEYYYYY!" and intimidated him into a very shitty apology. Once with a group of young men who told him no more atomic bomb jokes, they're not yakuza, the second one I can't find is an older guy who made him parrot an apology in japanese and I think he was "former" yakuza or some shit.

Having said that, I have no doubt if you're a dickhead in public nothing would happen but a few threats and pressure to apologize. But if you continue to act like an idiot and not show respect to the person threatening you? I have zero doubt they'll come after you when the cameras are off. At that point it's not a national pride thing it's a personal one.