Quite a few times, actually. First couple of times were in anatomy class, and the next few were patients at the hospital. The first time is a bit troubling, it certainly makes you facing mortality in a very real, very immediate way. I also thought I was going to become a vegetarian after the first class, but ended up going home to a nice, juicy steak.
It might sound a bit insensitive, because lying there on that slab, in that bed, is someone's father, mother, brother, sister, son, daughter, whatever, but unfortunately, it comes with the job description. It just wouldn't do if your physician broke down in tears each time she had to deal with death, right?