This past Saturday, BF member @
plonz gave me a nice Specialized Expedition to take out my frustrations on!
Two hours later, here is the result.
The cut I had to make was only 2.5" long, with the expander slot helping me out and guiding the "Alcatraz special" (hacksaw blade wrapped in electrical tape for a handle).
Poor stem, I wish I could have saved it. It was _really_ stuck. Inspired me to go around and regrease a couple seatposts and stems of my own. I realize as I get older and time speeds up, that this sort of thing could happen to me!