I attended a 1 day tutorial through the BDMA to find out more about trauma scene clean ups.
Blood on a floor / wall / carpet etc. I think I could cope with, but if you get into this line of work, you may well have to scrape up other body parts including skin, hair, eye balls, ears, noses, ears, brains, guts, faeces etc. etc.

I think it would be quite disturbing work, not for the feint hearted and something which you can not think about and get involved.
Just see it as another cleaning job.
Personally - it's not for me.
Also be aware of correct PPE, innoculations, washing and sanitisng facilities, cross contamination - leaving blood borne pathogens in a property or passing on blood borne pathogens.
On the course we were told of horror stories - where people were left traumatised and where others had been sued having not carried out their work correctly.
I'm not an expert in this field - just passing on info received.