1) If you are arguing with a friend about the awesomeness of a weapon - specifically, a scary Taser gun which is purported to be the latest in "electro-stun technology"- then try to persuade your friend by screaming nonsense at the top of your lungs. If that does not work, carelessly play with said weapon and come close to mortally wounding his coworkers.
2) The function of the "Recto Rocket," and the fact that such a thing actually exists. Dude. I would Google it, but I'm too afraid.