said by XPAMD:/Facepalm
That episode was based in the movie where the guys shoots (i forget which gun) through a carton of milk which supposedly prevents the explosion. They proved that its not the milk, but the gun doesn't produce enough spark.
It wasn't until they changed from Natural gas to Hydrogen Gas could they get an ignition if I am not mistaken.
Gas will ignite with the RIGHT ignition source/temp and gas/air mix.