Hammer: Look, I am much stronger than you, yet I find the hard way to open a lock. How could you do it much easier than me?
Key: I agree you are stronger than me, but there are two reasons why you cannot do it and I could. First, you are hitting on the head of the lock, whereas I touch its heart.
Hammer: True, then what’s the second reason?
Key: Opening the lock is not your purpose of existence, but it’s my purpose to take care of locking and opening. What say you?
Hammer: Yes. Key you are correct. Can you come and pluck a nail for me? (Winked with a smile)
Key: Well bro, that’s your business you are the boss 🙂