My only mistake like this (ok, maybe not the only one...) was the time I needed to rebuild a clutch on a Case tractor. The instructions required some 20 minutes of cure time at 350 degrees. Sounded like cooking to me, so while my wife was out, the clutch went into the oven. I went back to the garage and came in 20 minutes later to a pretty awful smell that permeated the whole house. Windows all open for a couple of hours, then closed up and I thought all was back to normal. Unfortunately my wife's olefactory is much more discerning than mine and she knew something was wrong when she got to the porch, even before the door was open. My goose, along with the clutch, was thoroughly cooked.