When you throw bricks (bricks themselves, not the blocks) at glass or glass panes, it should break the glass. It's not really a conventional gameplay mechanic, nor is it consistent with anything else really, but I think it'd be a nice touch. Between playing pranks on your friends and straight up griefing people you just plain don't like, I think this should be added. Not to mention, it also gives bricks a use besides being solely an ingredient for another recipe.
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