Do you feel that your cherished government should outlaw these "bombs"
as they have your guns and the way-too-dangerous dado spindles on your
table saws? Crikey!

This has gone a little OT, but Oldun makes a damned good point. An air
compressor or an air bubble can do a very good imitation of a bomb.

When I was in high school, many years ago, a classmate's father had a bubble
filled at an area farm equipment dealer. On leaving the shop he turned
around to say goodbye to the proprietor and apparently bumped the nipple
against the door frame. The bottle exploded cutting him in two at about
chest level. The proprietor was also badly injured. Government or not, I
can tell you that air bubbles have come a long way since those days
(1960's). This is also the reason that most reputable compressor shops
won't even talk about welding a tank fitting.

If you think your air compressor is the most benign piece of equipment in
your shop, think again.

RonB