I'll have to go back and read the rest of these, since I've been away. I don't want to repeat something that's already here. But I'll hazard this one. I especially relate to it because of my name here.

While working as a navy nurse in a military hospital, Anna was required to introduce herself by her rank and full name. She usually introduced herself as Ensign Anna Payne, but one day she rushed into a patient's room and blurted out, "Hi, I'm Ensign Payne."

The patient slowly responded, "I'm in some pain, too."