If you want to hear how a real pro does it, check out Sonny Rollins' The Cutting Edge. More specifically Swing Low, Sweet Chariot. Rufus Harley has the first solo on this one, a few minutes into the solo, Sonny decides he's had enough (that's what it sounds like anyway) and totally takes over. Really interesting to hear. Additionally, a very good Sonny album IMO.
I guess this would the blunt way of doing it. I have a friend I use to play with. He would solo for what seemed to be hours at a time. We would practice together, something use some play along records. He only stopped when the record ended. Real funny now that I think of it.