So my company was building a software to allow users to use a screen without the screen being touch itself.
It was made using a camera above the screen and then with openCV detect where the hand was.

Anyway I had to test it on the place.

And the place was a factory where they did produce pipes.
It's the biggest company in my city, and yet I was there, in the break room, coding a raspberry in winter in a factory.
The only source of heat was the fire used to melt the metal

That was literally awesome