The Ass in The Lion’s Skin
By
Aesop
An Ass found a Lion’s skin left in the forest by a hunter. He dressed himself in it, and amused himself by hiding in a thicket and rushing out suddenly at the animals who passed that way. All took to their heels the moment they saw him.

“If you had kept your mouth shut you might have frightened me, too. But you gave yourself away with that silly bray.”
((Fine clothes may disguise, but silly words will disclose a fool.))