I was one of the first aiders in my old job. I'm not sure how useful I would be now
I take a basic first aid course every 4 years and a sports based one every 2 years as I volunteers as a first aider with my local Rugby club, but I would love to take paramedic and suturing classes to cover some of the areas I lack.
Like others, mine was Army with a bit more depth on adventure training work. I have saved life so I guess it was well worth it. Now, let me see - how many years ago was that.........