mischievous trick

What he had mistaken for a human thought was a degree of reason required for a monkey's mischievous trick!

Three of us had an evidence of that by a mischievous trick for which we deserved punishment.

To disturb all good thoughts in their minds and your own, and drive out all serious impressions by this mischievous trick!

He left the animal to roam at liberty about the halls and gardens, where it was for ever at some mischievous trick or another.

"Don't speak of this plan of yours as a mischievous trick, baroness," he said earnestly.