I admire your sense of humor about it.

What's passing through my mind right now is the image I often saw when working at a major hospital about 25 years ago. There would be these very skinny very physically debilitated people, almost phantoms, with IV poles shuffling up and down the hall in hospital gowns and all marked up around their heads and necks with purple marker dye for the x-ray therapy machines. They all had open tracheostomy holes in their throats with half their neck muscles missing and scars running up and down their necks. They'd be smoking cigarettes through their tracheostomy holes.

Smoking in a hospital.....ha, that was a long time ago.

Anyway, back on track. Regardless what the real risk is, personally I don't think I'll be heating canned food by a fire anytime in the near future.