MAIL ON LINE
By DAILY MAIL REPORTER
PUBLISHED: 23:29 EST, 5 October 2013 | UPDATED: 23:29 EST, 5 October 2013
He has tackled plenty of grown-up subject matter in his acting career.
But Gerard Butler proved that he is still just a boy at heart on Saturday, as he engaged in some rather peculiar but apparently hilarious tomfoolery with a giggling friend in a seedy corner of the street.
The 43-year-old Olympus Has Fallen actor defied adulthood as he careered around New York City standing upright on his mountain bike.
He pedaled about on the beastly two-wheeler in brown Adidas sneakers, opting to forego the bike seat and show off his epic balancing skills instead.
Then the Law Abiding Citizen star dismounted from his bike, as it was prank time.
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