tit for tat kind of thing. You foul someone naturally you get a dose of your own meds. But religious threads are good for 'FYI' basis, but it gets dirty and provocative because some moron starts to address the issue by his superficial and myopic views. It would be tricky though and challenging for the offended party: you answer with wit- assuming the moron gets your point- or you fall into his hole and play his dirty game.
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"No one is in charge of your happiness except you"