Cute. A five inch blade, sadly attached to a weightlifting hand wrap, and a shin pad. Even if you could whip your wrist back far enough without breaking it, I doubt you would be able to fatally harm anyone. The whole knife would probably just slide off. Modern? sure. Hidden blade? haha, keep dreaming. You might end up somewhere nice.
Dude! XD I did something similar with my sweat shirt and pocket knife. Nice to see I'm not the only one who had this idea, and chance we could get a picture of it from the front? I'm curious to see the details on the pad.