abfarid

But in the same comment you said "everyone deserves to be loved" and "[everyone should] avoid toxic people". That doesn't follow.

Green color and less pointy corners definitely makes it look more friendly.

But all of them can equally be partnered with any other, because if you don't count the right angle difference they all have the same amount of differences and are equally "chill".

Yes, that's exactly what I said. B doesn't have those things you mentioned, meaning A and C do.

I would go with C, because:
A) Not filled
B) Doesn't have 4 sides/corners (or sum of angles is less than 360 deg.)
C) Isn't red AND the only shape with all right(ish) angles

So C is most unlike the others.

Presume away.

But I'm allergic to guten...

Umm, I'm sorry to be the one to tell you, guys, but my PC has that exact BIOS screen and it's 10 years old. They aren't that "new".

Oh, ok. Glad we are on the same page here. Enjoy.

What do you mean "no"? Your cat-owning neighbors don't maintain a cat toilet, do they? Just as I said, so "yes".

It's just your specific case. If you have an outdoor cat you also don't have to maintain a cat toilet.