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: My classmate has been snorting Adderall and smoking excessive amounts of weed and makes no attempt to hide it from anyone including teachers. He is really into Magic the Gathering and will buy any cards you show him. AITA for selling him overpriced decks so he won’t buy drugs?

selling overpriced Magic: the gathering decks to a classmate so he won't spend his money on drugs