A Zebra somehow managed to get loose from a zoo and wandered into the countryside.He came to a farm where the thing he saw was a sheep.
"What do you do?" asked the Zebra.
"I grow wool."
Then he saw a cow. "What do you do?"
"I give milk."
Next he saw a hen. "What do you do?"
"I lay eggs." Then he saw a bull. "What do you do."
"Take off those pyjamas and I`ll show you."