Check out this fresco in the Basilica of St. Francis in Assisi.
Can you see him?
There now. Can you spot him in this close-up shot? The artist, Giotto di Bondone, an Italian painter of the Middle Ages, hid a profile of the devil in this painting, and now, over eight hundred years later, it's only just been noticed. We may never know what Giotto's real motive was in hiding Beelzebub there in the clouds, but it serves as a good reminder to us, regardless, to look out for the devil's "wickedness and snares" everywhere we might be. Heaven knows, the Prince of Lies would rather we didn't notice him!