Imagine going to the Antarctica Zoo, Sea World, The Amazon, or Africa and while you're talking to your buddy about last night's conquest, a Polar Bear swimming in the aquarium inches from you, approaches the glass to say hi.
You don't pay attention to him, so he decides to throw a rock at you, shattering the glass behind you. My thoughts are... 1) you run as fast you can out of the building, 2) continue talking to your buddy, or 3) stay put and tape the damn thing.
Not a hard decision is it? LOL.