After last year's fiasco of ruining 6 tubes trying to install the orange conti trainer tire on my road bike, I have decided to take a different approach this year. My thought was to just use an old slightly worn tire and just mount it with no tubes and use it on the trainer without any inflation. It should still provide resistance, and fits tight enough on the rim that it should not randomly roll off.

Is this a bad idea? If so, why?