No.... I don't mean to insight people to try it, as in I am a Firearm safety fanatic...
Never point a weapon at another person, loaded, unloading, joking or not. Plastic is certainly not bullet proof and I was kidding, as stated at the end when I said I wouldn't actually being wearing it (I meant I wouldn't be wearing it or trying it).
It hurts me enough to think that people would consider trying this in reality. People might actually construed something so silly as reference to an action in humor as way to see if it would really work. Besides, I would never test a projectile on my self, my friends, or anything living.
As a matter of fact, I would never "test what a projectile" in any capacity, thats not to say I don't own weapons, I do hunt... but I am most certainly not certified to perform such tests, and I hope anyone reading this or my last post knows that it was merely in humor, not in any way serious. Firearm test are to be performed by trained professionals, or the folks at Myth Busters.
Thanks for pointing out Sean that not everyone is intelligent and knows the difference between sarcasm/humor and reality.