When is a five minute job not a five minute job?

Kim bought me a shiny new steering wheel for the Camper as a Christmas present. As she was out this morning I thought I'd tackle this quick and simple job. Disconnect horn, remove push button, undo 24mm nut, lift old wheel off, reverse the process with the new wheel. I got to the "lift old wheel bit" and thats where I stayed for almost four hours. Four decades of grime and grit and seized the splines together and none of the usual tricks was working. Boiling water hadn't loosened the grip. WD40 hadn't freed it. A hammer and block of wood and just cracked the rim even more. I even purchased a puller tool, which failed miserably. So I broke out the hacksaw and chopped through the boss before bashing the remains off the column. Once cleaned the new wheel looks great. Not a five minute job though!