I never worked in my chosen field and fell into software development instead.
I wish I could say it made me happy but it's quite the opposite. I feel out of my depth every day and I've never been promoted or such, and I've been with the company for almost ten years.
I'd go do something else but I don't really have any skills worth mentioning so I guess I'm stuck here until I get fired or am eligible for a pension (not gonna happen btw, there will not be any pensions for gen y and on.
So I just feel inept and stupid every day. At least it keeps a roof over my head.