We have a total-heck-just-broke-loose backup plan, that I go to when I have more than one kiddo melting down at one time, or whenever mayhem has taken control. I have an overhead door latch on the inside of my own bedroom door, and the kids can't open it. When heck breaks loose, we all go sit on my bed. They can rave and holler and carry on as much as they need to, and we're all safely contained within one room, so I can keep an eye on everybody. My room is the most uncluttered room in the house, so there's no safety hazards to speak of, and so it works out nicely. I don't open that latch until I have everybody calm and collected and listening to "reason." (As reasonable as any three year old ever is, of course...)
Make sure you turn off the stove or oven and secure any other dangerous situation, before you go to your "bug-out" plan.
When out in the world, if I have to deal with a tantrum, whether it be one kid or all of them, we immediately head to the car. I have perfected the technique of tucking one twin under each arm like a football, and making DD1 hang on to my purse strap, and we go to the van, and I put everybody in the van and close the door, and then we sit in the van until order has been restored. Luckily DD1 is paranoid about being separated in a public place, so she will always hold on, even if she's a mess otherwise. If she wouldn't, I would probably go back to bringing the double stroller, and put two kids in the stroller and one under my arm.
'Cause yeah, I have one high-strung 5 year old, and two 3 year olds, and sometimes you just have those MOMENTS. The ones that try the patience of angels.
