Cliffies, Learn To Pucker Up

Army groaned, put down her book, and answered the phone. "Good evening, Comstock Hall. May I help you?" Her eyes widened. She clutched at her throat.

"What's wrong?" asked Linda, as she rushed to her side.

"It's an abusive caller," said Army in a hoarse whisper.

"Here," said Linda, "use this whistle lying here on the desk. It's meant for guys like him."

"What do I do with it?"

"You know how to whistle, don't you? Just put your lips together and blowww."