Did the video manage to trick you as well? Relatively off-topic, what do you do when you have great optical illusion ready to showcase, but when deciphered, it looks greatly NSFW (not safe for work)? This question bugs me, even though I’m aware I couldn’t share it cause of the youngsters. Basically, I have a subliminal billboard illusion, advertising some sort of vine product, but when turned upside-down, you see something very adult. Something similar to this. I got a scan of it from some kind of public newspapers, but am not sure how to present it to you. Those of you who aren’t easily offended, proceed here and turn the picture upside down.