1) Kids,
2) wallet, keys, & cell phone.

Everything else that's really important should be cooling off in a media rated safe.

My parents, the DW's parents and both of my sisters (and their families) are no more than 20 miles away. I would likely have the entire family at the scene well before it was over. The kids would probably have gone with one or two of them for a sleepover while I stayed to sort things out.
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"There is not a man of us who does not at times need a helping hand to be stretched out to him, and then shame upon him who will not stretch out the helping hand to his brother." -Theodore Roosevelt