Either you are no contractor, or you are a very subtle and funny guy.
But about your original question:
It would be tough to do if you don't have significant experience working on a flooring crew already.
I and my crew install flooring - wood, finished and unfinished, engineered and solid, vinyl, linoleum, tile. I do great quality, fine work. I could never hack it as a flooring sub - I don't know nearly enough to install a variety of flooring types to someone else's spec, efficiently enough to make money and to make the contractor and the owner happy.
Edit: As Charimon says, try to hook on with a good crew. I don't think you should do it for free, though. You'll learn about the trade and you'll figure out if you can make money at it as a sub.
