Ekman's studies on lying nurses found about half of them leaked nothing when lying about the emotional content of films they were watching. ("Oh, these are pretty flowers, not a gruesome surgery on a burn victim.") I don't think 'few' is the way I'd put it.
I hadn't known someone had decided to study that specifically...
Based on my experience of nursing school, I would say this ability not to leak emotional reactions is true of nurses in particular, because you do get used to seeing a lot of really gross or upsetting stuff and reacting matter-of-factly. I basically don't experience disgust anymore. (Specification: in certain situations where most people would be disgusted, I experience pretty much no emotions, i.e. cleaning up diarrhea or changing bandages on infected wounds. There are some situations where I...
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