That's not funny, that's messed up. In essence, you're saying that if someone else doesn't submit to your will, talking the way you want, there will be physical violence. And then you escalate that to an imminent threat. Doesn't that sound pretty fucked up to you? I understand you want people to be polite, but what you consider polite is not universal. If you don't like the way a conversation goes, you can exit the conversation, either by not participating or physically leaving, or if you want, interrupt them in turn. Threatening people with physical violence is not the answer.