A veterinarian may have saved the life of a human, by being observant. The case is document in the monograph:
“Primary bladder phaeochromocytoma diagnosed by a vet,” Oderda M, Michelon F, Appendino M, Gallo M, Senetta R, Pacchioni D, Tizzani A, Gontero P., Scandinavian Journal of Urology and Nephrology, 2010 Apr;44(3):186-9. The authors, at the University of Turin, report:
“This study reports the case of a woman, treated for hypertensive crisis, who was diagnosed with bladder phaeochromocytoma thanks to a vet noting her fainting after micturition.”