03/21/2012 02:04 pm ET

Courtney Barwick, Canadian Teen, Gets Lost Wallet Returned With 20 Dollar 'Surprise' Gift

When 15-year-old Courtney Barwick from Victoria, Canada, got a call saying that her wallet had been found and turned in, she expected that it had been returned in the same condition she'd lost it in -- empty, save for an ID and some loose change.

Instead, the wallet had a $20 bill with a note saying 'surprise,' the Times Colonist reports.

A mystery benefactor had turned in the wallet to a bank anonymously. Bank employees describe him as an older gentleman with white hair and glasses.

Courtney's grandfather, Ralph Ovinge, had been with her when the wallet was lost. A retired policeman, he said that he had seen plenty of wallets returned during his long career, but never one with money added, Good News Network reports.

According to a 2011 study done in the International Journal Of Wellbeing, only about 17 percent of people believe that a stranger would return a lost wallet. However, the study also found that wallets "are far more likely to be returned, even by strangers in large cities, than people expect".

Barwick would likely agree.

"There are some nice people in the world," Barwick said.