Driving my car one afternoon, I rolled through a stop sign. I was pulled over by a police officer, who recognized me as his former English teacher."Mrs. Brown," he said, "those stop signs are periods, not commas."
Our school had just installed a new air-conditioning system, and a representative from the company wanted to make sure it was running smoothly. Poking his head into an empty classroom, he asked the teacher, "Any little problems here?"
"No," she said, smiling. "All our little problems have gone home."