How to give your mother-in-law palpitations

As usual, I'm so proud of Gwyneth. I took her to the pool yesterday, and she asked if she could try swimming without her armbands. So we took them off, and I watched as she tried to swim a full breadth of the pool. She made it, with only a couple of stops to catch her breath :) She's not yet figured out how to keep her body near the top of the water without the inflatables, so rather than doing her usual breast stroke, she settled for a modified doggie paddle, but hey it worked. (don't worry Diane, I was right next to her every bit of the way).