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04/09/2011 08:55 am ET Updated Dec 06, 2017

London Zoo Monkeys Steal Sunglasses Off Tourists' Heads (VIDEO)

A group of Bolivian monkeys at the London Zoo have started stealing sunglasses off the top of tourists' heads in the recently warm and sunny weather, the BBC reports.

But a zookeeper tells the BBC that they have sprayed the glasses with a bitter-tasting repellent (sort of like that stuff to stop biting your nails?) to wean the animals off the not-so-tourist-friendly habit.

WATCH the adorably mischievous animals below: