And did not stop.
And both Jack and Tori mrowled right back at him, which they've never done. And all three got puffed up and hissy, and there was some Max/Jack combat.
...Max hissed at me. :(
We dealt with this by putting Jack and Tor, who had no problem with each other,upstairs and letting Max cool down. Which he did. Okay. Good.
Until about an hour, hour and a half later - where he started puffing up and mrowling again,with no startlement to trigger it.
So. We are deeply concerned.
People with combative-cat experience: what can we do about this?