If I can interpret and process what I'm seeing, it might upset me - and quite a bit, at that. If I can't understand clearly enough to process it, or if the processing alone is delayed or not possible for some reason, I might then feel nothing. But I can show outward signs of upset if someone says it's upsetting, while I wait to see if it sinks in for me.
I've taken first aid and CPR for adults and children. I think that, because I'd have a procedure to follow, I'd focus even in a major emergency and be fine. The sight of blood on someone who had a cut on his face after a fall didn't bother me, and I took care of him just fine, following the appropriate procedure. But even hearing about a cut on someone after a fall makes me uncomfortable in conversation.
I can't watch shows about surgery or forensics, because real people are involved. My girlfriend loves those shows, but she doesn't like drama, which I can tolerate because I know it's fictional. The actors all get up and are fine later, and I can remind myself of this if it gets too intense.
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