020 - Why don't you?

Nasrudin went to the shop of a man who stocked all kinds of bits and pieces.

"Have you got nails?" he asked.
"Yes."

"And leather, good leather?"
"Yes."

"and twine?"
"Yes."

"And dye?"
"Yes."

"Then why, for heaven's sake, don't you make a pair of boots?"

source: Stories from Here and There, Ekalavya Education Foundation - By: Sunil Handa - http://www.eklavya.org/storyhere.html