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: I visited one of my haunts, and the bartender and I have been friends for at least five years now (prior to ever being a patron of hers while she’s working). During my visit, she asked if I wanted to do a shot with her; I obliged (naturally). 

Upon receiving the check, I was a bit taken aback to see she charged me for the shot.  When a bartender (a friend, no less) invites me to do a shot with them, I anticipate it being on the house. 

I went ahead and paid it without saying anything at the time. I doubt I’ll mention it at this point and just resolve to not take up a bartender on an offer like that in the future; but would I be the asshole if I were to comment on it?

commenting to a friend about charging me for a drink