One day, twin boys went off with their grandfather on an outing. They walked through the woods until they came upon an old barn.
When the boys and their grandfather stepped inside to explore, one of the boys immediately started complaining: “Grandpa, let’s get out of here. This old barn stinks like horse manure.” The boy stood near the door, angry because he now had manure on his new shoes.
Before the old man could respond he saw his other grandson running happily through the barn’s many stalls. “What are you looking for?” he asked the second little boy. “Why are you so happy?” The boy looked up and said, “With all that horse manure in here there must be a pony somewhere.”