I considered this a few years back at my work place , after all its always good to have another skill, truth is - one day I found out I couldn't handle the blood thang

, we had a really bad experience at our shop when a 'patient' was out for the day and decided it would be ok to hammer someone over the back of the head, the amount of blood was scary - worst yet 'customers' were stepping over the injured pensioner to get 'a tin of paint' - the idiots were saying 'excuse me' to the people trying to administer 1st aid to the gentleman, how the 1st aiders coped that day I don't know.
My point being that anyone who is willing to take on a 1st aid course should be prepared to be put in a situation that is more than a flesh wound, you may be the person that someones life depends upon, sometimes its overwhelming and very upsetting - make sure you can handle it and the idiots around you at the time (sorry guys - no offence), and sometimes you have to come to terms with the fact you can't help the person infront of you
as for that day at work -
after I had been asked to guard the doors and stop customers getting in, the offending attacker had entered our housewares dept - grabbed a meat cleaver - walked up to the counter - and cut his finger off right infront of one of the female members of staff on the counter.
the elderly gentleman, he died within a year.
the 'seagull' as he called himself is just considered ill, and not of sane mind and as such gets free board in an asylum. :evil:
Just to be clear, I am not trying to put anyone off and I have real respect for anyone who does learn the basics, great on the trail - just ................ just be prepared to be the one who everyone turns to, can be a big responsibilty.