Air supply

Looks like I'm going diving on Saturday, and Cyclops is encouraging me to prepare (ok pretty much doing it for me).

I am very relaxed and confident when I'm underwater, except in the respect that I bite through my mouthpiece approx every 20 dives. This is not normal and is presumably some sort of subconcious freak-out about not wanting to let go of my air source.

Some time back my friend A said I should get a special sort of mouthpiece that is like one of those gumshields that you mould to your own teeth. You put it in boiling water, then bite it for a couple of minutes, et voila!

So here it is, prepared for Saturday.

We'll see if that makes a difference!