TODAY | December 15, 2013
>> good samaritans spreading holiday cheer by helping shoppers in a serious way. dylan is in the orange room with more.
>> these kind-hearted people are opening their wallets and hearts in stores nationwide. their good deeds are coming in the nick of time . noelle walker has the story.
>> reporter: angels do exist. at this miami walmart one secret santa handed the store two checks totaling $ 1500 asking to pay off customer balances.
>> i'm so grateful and blessed. someone cares about me.
>> reporter: an act that's taken place at other stores around the country. then there's this. part generous gift-giving, part marketing stunt. when canadian airline west jet asked passengers what they wanted before they boarded the flight.
>> what would mommy and daddy like for christmas.
>> big tv .
>> reporter: to then have the gifts delivered at baggage claim on the other end bringing some
to tears: in l.a.'s fashion district they are randomly paying for parking and purchases at stores.
>> we'll be picking up your tab today.
>> that's so sweet.
>> reporter: this notion of spreading joy is part of a growing worldwide effort known as raccing or random acts of
christmas kindness: there's even a facebook page, a few examples of how kindness can be contagious.
>> you have 45 minutes.
>> reporter: for today, noelle walker, nbc news, los angeles .