Six to eight years ago, whoever wrote this on the NYC subway system was freaking everywhere. You'd see it on seats, on ads, on the "Do not lean against door" sign so as to say "Do not Pray." (Which seems a little counter-productive to be honest).
But it's been a while now since I've seen it so I was excited to sit down on the train last week and find this right in front of me on a (not-so) brand new Q train. I may not agree with the message, but the proliferation of this character is pretty remarkable.