On Sat, 11 May 2013 23:05:52 -0700 (PDT), harry
wrote:

There is a theory that the Nox gases released into the house by gas
cookers are quite bad for you.

There are theories that angels dancing on pin heads can be bad for
you.

Especially if you have an existing pulminary problem such as asthma.
If you walk into a house with a gas cooker, you can tell instantly by
the smell.

Of course you can dear, you can probably also smell the deadly
peanuts.