Trey and I were helping Dr. Krapfl with a cardiac ultrasound of a heartworm positive dog, and Dr. Krapfl did not initially find any heartworms.
He found one lone heartworm in the pulmonary artery, and I yelled, "It's a girl!"
I thought that was hilarious, but no one laughed except me. And probably Dr. Krapfl and Trey later.