Oh dear: Valves!

Just caught myself looking at this site that came in via a OutdoorsMagic forum, and finding it interesting. Yup, sat at work between classes and looking at various gas fittings and canisters/cannisters. Then the realisation catches up with me. Do I care? Nope. Some people find football scores interesting. Yawn. Maybe they have a vested interest in it. So, I suppose that I now have a vested interest in things like the disposal of gas cans - in a safe and environmentally friendly manner too.