Imagine you’re in a store, waiting at the checkout, having a conversation with your SO that has revealed some key difference of opinion on a topic that affects your relationship. You’re having the conversation in a public place not because the subject matter is public but because that’s where you happen to be at the time and the conversation is important to you and your SO. Now imagine the person who has been standing behind you in line doing something on their phone interrupts you and says "Your conversation is hilarious, I’m live tweeting it as you speak, please carry on" with a big grin on their face. How would you feel about that?