I think that's what people are getting at, yeah.
Also, surely no one in any form of house should throw stones. Throwing stones is something you do outside. Now, if you were trapped inside a house, it'd be a different story but throwing stones in a non-glass house wouldn't work very well I don't imagine. I'm left thinking that if I ever WERE to throw stones in a house, it'd probably be a glass one because it'd be the most effective.