Mine is usually a weird zigzag kind of effect off to the side that spreads and fades. No pain though usually. I also get the 'light show' when I'm fatigued and close or rub my eyes, but you're probably right that it's unrelated. It's funny how it can feel like an indefinable colour. Cool that you captured it in painting though!

Do you get migraines? It looks kind of like what I see when I get one.

My friends and I would play like that for shits and giggles usually after drinks. You can play reverse on top of pick up on top of skip, etc. so inevitably someone ends up with a massive hand and a plan to exact (friendly) revenge that often backfires spectacularly. But I wouldn't say most people play that way. Just one of those figures of speech one says without really thinking about.

I think you've read tone into my comment that wasn't there. Wasn't trying to be antagonistic.

They basically said all of that in the article