Sun Block

"Whats this?" asked the little one as we prepare to go swimming
"This is Sun block?"
"Why?"
"To block the sun while you are in the pool. The sun can tan your skin..."

Pause...as I go about applying the sun block.

All of a sudden, "I am feeling cold" (Please note that this is summer 2010, when Bangalore is having one of its hottest summers)
"What? How?"
"Because this cream is blocking the sun..."

Beginners mind image from the always excellent Presentation Zen.