An Ass put on a Lion's skin and went
About the forest with much merriment,
Scaring the foolish beasts by brooks and rocks,
Till at last he tried to scare the Fox.
But Reynard, hearing from beneath the mane
That raucous voice so petulant and vain,
Remarked, "O Ass, I too would run away,
But that I know your old familiar bray.'

That's just the way with asses, just the way.