Being a Leader

I applied the second Principle of being a leader from How to Win Friends and Influence People this past week on my younger brother.
Before I left for class in the morning, I cleaned all the dishes in the sink and made sure the kitchen was clean from everyone's breakfast (since I'm the last to leave in the morning). When I come home from school early that afternoon, I was greated with a mountain of dishes and crums all over the counter. Needless to say, I wasn't happy. When my brother, who I knew was the culprit, passed throught the kitchen I asked him, in a non-threatening tone, "were these dishes in the sink when you woke up?" He replied with "No" and I could tell he was confessing to his mistake. By using this the tactic of calling attention to mistakes indirectly, it helped my brother realize the mistake without me having to scold or penalize him for his actions.
I then went on to use the rule of the two "yes's" by asking, "You know mom would be mad if she came home to a sink full of dirty dishes, right?" I followed up that question with, "don't you think she would appreciate it if she knew you helped keep the kitched clean for her?"
How to Win friends and Influence People is possitivly helping me to realize the way I interact and speak with people. Overall, the outcomes have been more positive than negative.