Tonight, Cat's annoyance starts with the unnecessary security, and escalates with Tareq's use of a whistle for control. Things turn catty over a "bitch" comment and even more dramatic after Cat realizes that *gasp* the stomping grapes are table grapes.
To be fair, that's pretty tacky to have table grapes at a winery sponsored wine stomp. But, the drama that accompanied Cat's statement was a little over the top and not even served with proof (there are times where vine grown grapes can look like table grapes!).