Mu and I went to search for a cat in Issaquah today. I thought we were going to get cool weather, like we had had the previous morning, but the clouds burned off earlier than expected. We were going to do one more sweep through a section of the woods, but Mu said no. He had started panting, he looked tired, and he just started walking back toward the car, pretty clearly indicating he was done. This was unusual for him. However, he has been doing the job for six years, more than 100 searches per year. It’s certainly okay for Mu to say he’s too hot and tired.