As I was standing at the door, I overheard a conversation between a tiny human (1st grader) and a larger human (presumably the tiny human's father).
Larger human: *pats tiny human's forehead*" Why do you have crayon on your head?"
Tiny human: "I colored!"
Larger human: *takes his thumb, licks it and begins to rub the crayon off* "OK but why is it on your forehead?"
Tiny human: *turns his eyes upward* "I don't see anything. It's there?"
Larger human: *still scrubbing the crayon off* "Yes it is. What happened to you?" *begins to escort tiny human out the door*
Tiny human: *puts hands in front of his eyes* "But I still can't see it!"