wa2ise

Yes, portable panels do exist. A big pin and sleeve connector goes in and smaller pin and sleeve connectors and ordinary outlets come out. It also contains a few breakers and often a GFCI. I don't know if these are sold in the US, but they are common in some countries on construction sites and in other places were you need something temporary that is bigger and better than ordinary 'household' extension cords. Like this small one here

I'm confident that some people can make a disaster out of them too [Linked Image]