I was working on that years ago on Steem.
Posts are probably still there...
Lets see if i can that all put together.
My best idea is a solar oven, but i do not have a place to build that yet.
So i can only give best idea plans.
And it is a good thing you didn't get that tuna, because you may be able to knock one person out, and appease another, but there is more, they keep coming, there's no end to them, and they wont stop when you tell them that is all your tuna. 😝