On her birthday, a first year school teacher l was receiving gifts from her pupils. The florist's son handed her a gift. She shook it, held it over her head, and said: "I bet I know what it is - flowers!"

"That's right!" said the boy, "but how did you know?"
"Just a wild guess," she said.

The next pupil was the newsagent's daughter. The teacher held her gift overhead, shook it, and said: "I bet I can guess what it is - a box of chocolates!"

"That's right! But how did you know?" asked the girl.
"Just a lucky guess," said the teacher.

The next gift was from the off-licence owner's son. The teacher held the bag over her head and noticed that it was leaking. She touched a drop of the leakage with her finger and tasted it.

"Is it wine?" she asked.
"No," the boy replied.

The teacher repeated the process, touching another drop of the leakage to her tongue. "Is it champagne?" she asked.
"No," the boy replied.

The teacher then said: "I give up, what is it?"
The boy replied: "A puppy!"