Working as a radiology technician in a hospital emergency room, I took X rays of a trauma patient. I brought the films to our radiologist, who studied the multiple fractures of both femurs and pelvis. "What happened to this patient?" he asked in astonishment.

"He fell out of a tree," I reported.

The radiologist wanted to know what the patient was doing up a tree. "I'm not sure, but his paperwork states he works for Acme Tree Experts."

Looking again at the X rays, the radiologist said, "Cross out 'experts.'"