In the Chilleen Bar, the female owner who would often get drunk (to the point that she didn't even remember meeting Jon the previous day) is told by Jon he would leave if she had any alcohol when he was there. During a bad Cold Start and some clear signs of alcohol withdrawal, a group of regulars try to get her to drink with them. She turns them down. Even Jon was impressed with this.
Jon standing up for his chef expert to the point of almost punching the owner of ZanZBar who called him fatboy.