Sure sign you're around the bend

At the end of my 4th session swimming around Aquatic Park, San Francisco I realised my fingers were splayed and I couldn't bring them back together.

"That happens" remarked my swimming companions.

I'd been in the water for an hour and didn't think too much of it.

Then, whilst reading Lone Swimmer's blog I discovered:

THE CLAW

Turns out, it's a pretty good sign you're starting to push it in the cold water. It's also a pretty good sign you're well on your way to becoming a cold water swimmer.

My thought process ran:
I've had da claw. I'm like totes a fully serious cold water swimmer. Hells Yes!

Definitely dolally.