You shouldn't tell your friend how to live his life.
Mack and Jimmy and friends which hang out together almost every day.
Mack wants to be a helpful friend to Jimmy.
Mack lives by example and gives sound advice based on hi slife experienced when asked.
Mack often gives Jimmy unsolicited advice and criticizes even the smallest decisions that Jimmy makes daily.
Jimmy sees Mack as a mentor, and they become best friends.
Jimmy gets fed up and starts avoiding activities with Mack.