It was a Sunday morning, Alice and I were watching the TV. A report about a sweat counple in England Mr. & Mrs. Peter, then Alice asked me a very strange question, "Why Mr. & Mrs. do not have any children?"

"Maybe they just do not want any children." I answered, Dink family (double income no kid) is very normal in some big cities in China at present.

"I guess Mrs. Peter must have encountered some difficulties in get pregnant" she said.

"But it is not only a problem of woman...." I want to correct her mistake and said," There are many reasons can result in infertility, such as pollution, drug, alcohol..."

"Mum, " Alice interrupted me and aske," Can you answer me just one question? Who can lay eggs, a hen or a cock?"

"Hen does, of course," I said.

"100% correct! So it must because Mrs. Peter can not bring a child to Mr. Peter!" Alice said.