Well I can't remember the exact wording but I'm sure either Paul K or Fish called him a disgrace as they walked out. Obviously they didn't use flattering terms before that which is why Coar threatened to sue them.
Basically what really tipped it over the edge was mentioning Jack Walker and how he would feel about Coar's attitude. Coar just said "what have you done at work today" or something like that. I do think there's worse people than Coar who get less criticism (like Jack's family ironically enough) but he's still one of their stooges to an extent. Coar didn't attend the last one can't imagine why.
Don't know about Fish or Keogh but Duncan Miller walked out at the last one because of Cheston's nonsense. Plus Mowbray Magoo being there to deflect from the real issues which Pasha should be there to talk about. Basically it became a Magoo Q & A which isn't what those meetings are supposed to be about.