I was an absolute DICK!
Daftest thing is out a boat I am a fish, up to my chin, no worries, free dived a sump at Llandudno cu just to cool of in my wetsuit.
Me and small boats though dont seem to go together very well.
I once used a dingy to cross the flooded Turnavore Shaft when Polberrow was still open, it tipped end up and in I went.
I got out the outbye side, stood looking at it for 5 minutes, then lowered myself back into the water and just used the boat as a boyancy aid.
For the interest of those who used to go unto that mine, the timbered level beyond only went for about 20 yards.
My avatar is a poor likeness.