Pulling faces

Noticing one of her students making faces at others on the playground, Ms. Smith stopped to gently reprove the child.

Smiling sweetly the teacher said, "When I was a child, I was told if I made ugly faces I would stay like that."

The student looked up and replied,

Spoiler:

"Well you can't say you weren't warned."

Even though I saw it coming I still laughed out loud!