Well, if you ever did have the need for a tourniquet, it would be good raw material. I have never been in a situation where application of a T was warranted, and that includes a case where a bystander suffered a near complete amputation of his arm from the rear rotor of a helo.
I asked a paramedic friend, with about three busy years on the street, if he had ever applied a T. Answer was 'No." Just for kicks, has anyone here ever appropriately applied a T? How severe was the injury?