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 I was walking around the mall, just browsing, possibly for some shoe cleaner Ive been looking around for, I see a shoe cleaner booth nearby and check it out. Guy who works there goes up to me and asks if I would want to try a sample, I accept as a way to get my shoes cleaned for free and to check out there product. I ask there price for it guy says it's $40 and being a near broke college student I could not afford that. After guy finishes cleaning one of my shoes and says it looks good I say yea its works great, then he says I'll clean your other cuz i wouldn't want you to walk around with one clean shoe. I appreciate his thoughtfulness, afterwards i had to go, so he kind of beggingly asks for a tip for giving a sample, I decline saying that I can't man I'm sorry I need the money later and the dude didn't seem too mad but he brought up that he only gets paid commission but it had me thinking what should I have really done 

not tipping