Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: So this isn’t actually a scenario directed at me, but my girlfriend recently told me that her dad was really tempted to tell a group of strangers at a restaurant to take their hats off while they eat. He’s a very traditional type of guy, and so he was very angry to see that they (random strangers) were eating with their hats on.  When she told me this, I was kind of taken aback, because to me, it’s none of his business. I’m asking because maybe I’m missing some restaurant etiquette? 

telling people to take their hats off in a restaurant