A cute story.

A young boy enters a barber shop. The barber whispers to his customer, "This is the dumbest boy I have ever seen. Watch as I prove it to you."

The barber puts a £5 coin in one hand and two £1 coins (1+1=2) in the other, then calls the kid over and asks, "Which do you want, kid?"

The boy decides to take  two £1 coins and leaves. "What did I tell you?" said the barber. "This kid never learns."

After some time when the customer leaves, he sees the same kid coming out of the ice-cream store. "Hey, kid!": calls out the customer. "May I ask you a question? Why did you take two £1 coins instead of £5 coin?"

The kid replied while licking his cone, "Because the day I take the £5 coin, the game is over."

Moral of the story: Never underestimate others. Mind it!