I've been an instuctor on our department for a few years and earlier this year taught a fire fighter I/II class that ended last month. Yesterday I took the American Heart Association Healthcare Provider Instructor Course.
Next Friday I will be observed teaching a class to receive my certification. I'm pretty excited about it as I'll be helping teach the guys on our department but also going out and doing classes at doctors & dentists offices, factories and schools and everywhere else I can drum up a little businesses.