A method for altering operation of a nerve related to a given body condition includes the steps of identifying at least one nerve root of a nerve related to the given body condition; laparoscopically implanting at least one electrode on the nerve root; and operating the electrode to electrostimulate the nerve root and alter operation of the nerve. A gun holding apparatus is provided for safety in holding rifles, shotguns and muzzleloaders in a carrying position, resting position, and at the same time, making for an easy and quick shift of a firearm from the resting position to a ready position for shooting without any adjustment to the gun holding apparatus. In some embodiments, a P2MP label switched path ping protocol may be used a first connectivity verification protocol for the P2MP LSP and a Multipoint Bidirectional Forwarding Detection protocol may be used as a second connectivity verification protocol. The stopper and the head of the needle holder are of significantly reduced diameter from the injection fluid chamber to resist blowing out prematurely.