We played with the jerk-of-a-cat yesterday in an effort to wear him down. Suddenly, after about 5 minutes of strenuous acrobatics and scampering, he started panting. Like a dog. Tongue lolling out of his mouth.

I’ve seen him pant slightly when playing fetch, but this was very sudden and lasted for about 5 minutes. Afterward, he was back to his old jerk tricks again (so much for wearing him down).

Has anyone else seen this?