Let me share something which I read somewhere :
Einstein, Newton and Pascal are playing hide go and seek.
It's Einsteins turn to count so he covers his eyes and starts counting to ten.
Pascal runs off and hides.
Newton draws a one meter by one meter square on the ground infront of Einstein and stands in the center of it.
Einstein reaches ten and uncovers his eyes.
He sees Newton immediately and exclaims " Newton! I found you! You are it!"