A pediatric nurse, had the difficult assignment of giving immunization shots to children. One day she entered the examining room to give four-year-old Lizzie her shot.

"NO!! NO!! NO!!" she screamed.

"Lizzie," her mother scolded. "That's not polite behavior."

At that, the girl yelled even louder,

"NO, THANK YOU!! NO, THANK YOU!! NO, THANK YOU!!"