Having worked in various offices over the last 24 years (God, that makes me feel old. Would anyone believe I started work at ten?) it does take a certain personality type to sit in close confines, day after day, with people you wouldn't trust to water a spider plant, and NOT kill them. I've seen some fantastic people come in, full of enthusiasm, and leave six months later, drained of all hope. I wouldn't be any good at your job - the blood and gore wouldn't bother me, but I think the abuse of the 999 service would tip me over the edge pretty quickly. At least if I get abuse it's only over the phone, and I can hang up.