Dinghy Cruising Association. I am rowing Kittiwake, which is rapidly becoming one of my favourite boats for aimless paddling.
But under the smile was bitter pain. I was trying out a new set of high-tech underpants in the hope that they would prevent my recurring problem with chafing on the bum.
A pair of Berghaus trews made of spandex had helped, but I had come to the conclusion that the main culprit was the Marks and Spencer cotton/polyester boxer shorts I favour. There seems to be very little advice available on the web concerning this fundamental problem, though I bet it is more widespread than many admit.
Cyclists are much more open on the subject, and they recommend special underpants to prevent saddle sores. So off I trotted to the cycle shop and invested more money than I have ever spent in my life on a pair of knickers - a score. Outrageous. And when I got them out of the box and saw the thick pad that is supposed to protect you from the saddle, I just knew they wouldn't work.
In fact, they made matters far worse, causing an extremely painful chafe that took all week to heal.
So the next day I popped into Aldi and there found a running set consisting of breathable vest and pants in some sort of stretchy polymer for the very reasonable price of a tenner (Aldi is cheapskate heaven).
On Wednesday I tried them out on a trip round Langstone Harbour in the teeth of a Force 5, and they gave no trouble in the botty department at all. I hope I may have cracked it.