In my previous hospital, I would occasionally have a nurse practioner student shadow me. Many of them were RNs who worked at this hospital and arranged their rotations with assorted docs there. I was popular for the OB/GYN portion.
Anyhow, one week one of them saw my surgery day - multiple laparoscopies, a vag hyst. Next day, she witnessed a vacuum assisted delivery. Also that week was a section on a very large woman. Now, people think of surgery as this delicate, precise thing. And many times it is. But shoving a port in during a scope takes some muscle. Sucking out a baby takes muscle. And entering the abdomen in a section is neither delicate nor easy. Basically, you and the assist put your hands in and pull AS HARD AS YOU CAN outward.
Vicki came up to me after all of this and said she understood why I didn't exercise - I was working out at work!