Holidays do seem to trigger more extreme behavior. The end of my marriage came on a Sunday when only emergency responders were available but it's not always a holiday crisis.
Right now on a holiday and heading into a weekend, you may have to depend on emergency responders if you need help if you can't manage to handle the next few days.
Be aware that calling in resources can backfire if you're not previously prepared. In my case I had been recording my ex's aggressive tantrums (quietly, not waving anything in her face) for months. I had a real fear that if an incident happened, then I'd be the one accused. After all, I'm a man and she's a woman.
Sure enough, when the police arrived, she claimed I was the bad guy. The officer asked me to hand my preschooler (quietly sobbing in my arms) over to his mother and "step away". When I finally did get a divorce lawyer months later he was surprised I wasn't carted off since that's policy in my area. Two good things: (1) Our son clung tighter to me and wouldn't go to his mother so they just left. My son saved me that day.
(2) Once I had the opportunity to download my digital audio recording where where she had threatened me, the tables turned and she faced potential consequences for her aggression.
I prepared myself that if anyone questioned why I was recording then I'd explain I needed to confirm I wasn't the aggressive one. It was hopefully impossible for her to claim she was actually the victim when she was ranting and raging.
Lastly, if you do need to exit, do so as calmly as possible and do try to take any minor children with you. Phrase it as going to a park, restaurant or some other activity to defuse the incident. You may be able to return after she's reset. If that doesn't work, ponder whether you can call a trusted friend to come over. Often people will control themselves somewhat if there are witnesses present.
