What a discrimination - I cannot use the escalator!

Hey, great minds think alike!

I think it is supposed to be a motivational thing. People don't like being called fat so by doing this it motivates them to prove they aren't fat and use the stairs. Or at least that's how I took it.

I think it is just clever grafitti

But on the side there's always a sticker that prevents you from walking...

@vlekkie I'm not really a guest. I've been admiring you guys from a far since the school year began.

Did you just say "I was stalking you" in a very formal way?