Of course not no reason. [He wasn't sincerely thinking to test it out, even with his curiosity what would result. Injuries are possible consequences in cool fights, or something that comes from preventing even worse injuries. Like the controlled damage he did to his skull, to prevent the fracturing Sans went through. Or hypothetically protecting Sans or someone else, from something bones couldn't stand up to but metal could. His modular parts are expendable, of course they are. There's already pieces he's swapped out and replaced, pieces he's designing with that intention...]
no subject