What do you people know about the private investigation field? What are the job prospects? What is the training like? How many unemployed PIs are out there? How are the odds on making PI work pay all the bills? What does it take besides an aptitude for sneaking around not getting caught watching people? How secure are the families of PIs? What are some of the pitfalls to have in your background if you want to be a PI? Why would any sane person want to do this, anyway?
My experience with the field is limited to fiction of dubious quality, so I'm very curious to hear what people with real-world knowledge of the trade will have to say.