As if the prizes weren’t enough reason to Roll Up The Rim at Tim Hortons, here's another one.

An energetic cashier made a winning customer's day with a little song and dance, a YouTube video shows. Judging by the comments, the employee works in the Student Centre of McMaster University in Hamilton, Ont. And the students love her.

"Went to Mac for six years, she was there all six years. Absolutely amazing. This woman restores my faith in humanity every morning with a large (or on bad days, extra large) double-double," wrote Ryan Trepanier in the YouTube comments.

"One time I was on the verge of dropping out, then she sang me a song and made me the perfect Earl Grey, and now I'm graduating with honours," YouTube user templesherly wrote.

The employee apparently also draws smiles on the cups (and even hearts for Valentine's Day).

So if you're not a Roll Up The Rim winner, don't sweat it -- she still seems to find a way to make customers' days special.

Related on HuffPost:

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  • Roll up the Rim to Win: A History

    Here are nine important, fun or just plain random facts about Tim Hortons’ Roll Up The Rim To Win Contest.

  • This is the guy who invented it

    Ron Buist was the marketing director for Tim Hortons when the chain rolled out its first Roll up the Rim to Win contest. Buist says he came up with the idea because of cost constraints. The chain didn’t have enough money to make cups for a scratch-and-win contest, so he came up with the idea of rolling up the cup’s rim instead. "<a href="http://www.thepeterboroughexaminer.com/2012/05/01/roll-up-the-rim-inventor-among-judges-at-may-12-bears-lair-finale">Like any invention, one person comes up with it, but it's the company that makes it work</a>," Buist said.

  • There's a novel about it

    Giller Prize-nominated writer Leo MacKay Jr.’s novel <em>Roll up the Rim</em> is “<a href="http://www.indiegogo.com/rolluptherim">a comic tale of obsession, redemption, divine intervention, and Timbits</a>.” MacKay is selling the book directly, and depending on how much money you send him, you can get the book autographed, get a reading from the author via Skype, or even get an in-person reading. Now that’s dedication.

  • A hot commodity among thieves

    Some retailers who carry Tim Hortons coffee have reported customers doubling or even tripling up on roll-up-the-rim cups. Some brazen wannabe winners are going so far as to take entire stacks of cups out of stores. Retailers have <a href="http://www.torontosun.com/2012/02/25/thieves-stealing-roll-up-the-rim-cups">taken to hiding the cups behind the counter to keep people from stealing them</a>.

  • Dude, where’s my Toyota?

    A winning Timmies cup became the centre of acrimony in 2006 when a 10-year-old Montreal girl found a cup in a garbage can. With the help of a 12-year-old friend, the girl discovered that the cup was a Toyota RAV4 winner. But the contest win turned into a battle between two families when the 12-year-old’s parents claimed the prize for their own. And the whole issue became even more complicated when a custodian at the girls’ school claimed he had thrown the cup away. In the end, <a href="http://www.cbc.ca/news/canada/story/2006/04/19/hortons-cup-060419.html">Timmies gave the car to the 10-year-old</a>, as the rules stipulate whoever hands in the cup wins the prize.

  • Timmies employees sneaking and peeking?

    A Newfoundland man told the press in 2008 he suspected Timmies employees of sneaking and peeking at cups to suss out winners, then passing along the losing cups to customers. Bernard Delaney said he got a cup that looked like the rim had already been rolled up, and the cup, he said, even had teeth marks. Tim Hortons said <a href="http://www.stcatharinesstandard.ca/2008/03/26/manufacturer-blamed-for-faulty-roll-up-rims-man-says-his-cup-looked-like-it-had-teeth-marks-on-it">a manufacturing problem was to blame for the cup</a>, and denied anyone had bitten into the cup or sneaked a look under the rim.

  • Environmentalists vs. Roll up the Rim

    The Toronto Environmental Alliance criticized the Roll up the Rim contest in 2010, noting that disposable coffee cups of the sort Tim Hortons uses are wasteful and harmful to the environment. "A lot of resources go into making a coffee cup and too often they end up going into garbage. . . . it's a pretty significant waste of resources,” the group said. Tim Hortons <a href="http://www.lfpress.com/news/canada/2010/03/01/13076551.html">said they were looking into alternatives, but hadn’t found one yet that works</a>.

  • Regional divides

    Tim Hortons took some criticism when it emerged in 2009 that <a href="http://www.cbc.ca/news/canada/new-brunswick/story/2009/03/11/nb-tim-hortons-rims-629.html">your odds of winning are worse in some provinces than others</a>. CBC reported that, though 52.5 per cent of Roll up the Rim purchases took place in Canada’s largest province, Ontario only received 43 per cent of prizes. The best odds of winning were in British Columbia, where the odds of winning were nearly double that of Ontario.

  • Counterfeit cups?

    Vancouver Island house painter Matthew de Jong walked into a Tim Hortons in 2009 and presented a winning cup for a Toyota Venza. A week later, the company <a href="http://www.cbc.ca/news/canada/british-columbia/story/2009/05/15/bc-roll-up-the-rim-fraud.html">informed de Jong he wouldn’t be getting his prize because his cup was a fake</a>. Tim Hortons even suggested it could bring charges against de Jong. But when the story hit the news, a 12-year-old girl who lived in the house de Jong was painting came forward to admit she had made a fake winning cup as part of an April Fools prank. Tim Hortons dropped the matter.

  • Bad for business??!!

    In 2011, when Tim Hortons missed quarterly earnings projections, the company blamed the bad performance on “<a href="http://www.theglobeandmail.com/globe-investor/tim-hortons-blames-roll-up-the-rim/article591364/">significantly increased food and beverage prize redemptions</a>.” The company estimated Roll up the Rim had cut about a third off of same-store sales growth that quarter. But the company also noted that a coffee promotion at McDonald’s during that year’s Roll up the Rim may have cut into sales.