There's an old joke: "How do you know if someone is vegan? Don't worry, he'll tell you."

My eyes would be glossing over in both cases. I've been confronted with this information many times in the past; often against my wishes despite the social cues I'm giving. It's not that you're wrong, or I don't care, or I don't get it. In the moment, I might even be interested. But the evangelists have burnt me out.