You should join us, he said, and now I am the guest

A frisbee landed on my towel at Pacific Beach and a man jogged over to get it. I threw it back, badly. He said, you should join us, we play on Thursdays. I have not missed a Thursday for fourteen months. I am still bad. They have changed the rules so that nobody counts the number of times I miss. The new rule is called the guest rule. I have been a guest for fourteen months. I have been told I can stop being a guest. I would rather not.