Dog's Duty

A nursery school teacher was delivering a station wagon full of kids home one day when a fire truck zoomed past.

Sitting in the front seat of the fire truck was a Dalmation dog. The children fell to discussing the dog's duties.

"They use him to keep crowds back," said one youngster.

"No," said another, "he's just for good luck."

A third child brought the argument to a close. "They use the dogs", she said firmly,  "to find the fire hydrant !"