[DougVieyra]

The You-tube example, which was with 'pressurized natural gas', is like comparing apples to oranges. But I do appreciate the effort to bring the danger of filling a car's gas tank to our notice.

I am reminded of the 'Danger' I once read about in the drinking of beer (or other liquid) from a glass bottle. There is the risk of one's tooth hitting the edge of the glass, thereby either chipping the tooth, or, chipping the bottle's glass, thereby risking the glass shards falling into the bottle's liquid contents. YES, that is a danger. However, a great many of us have accepted the risk, learned to live with it, and continue to drink beer and other beverages from a glass bottle.

And for that matter, there are some who argue that driving with mechanical breaks is inherently dangerous and should be avoided. While that may or may not be true, there are a great many who accept the possibility of the 'danger' that mechanical brakes are not as efficient or as safe as modern brakes, still feel comfortable, as an acceptable risk, and drive with mechanical brakes.

There is 'danger' in everything - it is for each of us to measure our own 'risk' tolerance, and do what we feel comfortable with. For some it may be the $40 metal Filler-Extension; others may feel comfortable with the $3 PVC extension. For some, it may be, while fully aware of the REAL, PROVEN danger, they STILL chose to live in Florida - the 'Bulls Eye' of Hurricane Alley. Or Oklahoma - home to 'Tornado Alley', or the California coast - home to constant Earth-Quakes.