I've found it helps with patients who are hostile or unhappy and need some "tough" love in an emergency. I've been apologized to by them later for their "rudeness" to me and just felt baffled, I didn't realize they were being rude.
Something like yelling, though, I'd definitely pick up on that.
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"Look at you lot, all so vacant. Is it nice not being me? It must be so relaxing" - Sherlock
AQ: 44
IQ: 167
Aspie Quiz Result: 185/200
NT result: 22/200
BAP: 132 aloof, 108 rigid and 121 pragmatic