I know, I know, I'm a little weird but I enjoy chopping mortises most of the time. I find a Zen like state.....tap, tap, lever, tap, tap, lever, repeat until everything that does not look like a mortise is removed. I can do the eight or sixteen needed for a table almost as fast as they can be done by machine. The one exception is a short, narrow, and deep mortise, like the one I had to chop for the vise garter last night. It was almost enough to make me buy a mortising machine. If there had been two of 'em I expect the AmEx would have been whipped out and I would be finding room in my overcrowded shop for another machine.
By the time I got to within about an inch of the promised land instead of chips all I could remove was dust or a stuck pigsticker. After an hour of whack, whack, try to lever and getting either dust or a stuck chisel I dug out the drill and drilled out most of the waste, paring out the rest to clean up. What a PITA.