A venti act of kindness. (via)

It started at 7 AM, when a woman at a Starbucks drive-thru decided to commit a random act of kindness by paying for the coffee of the customer in the car behind her. By 6 o'clock that evening, 378 people had taken part in the impromptu game of "pay it forward," helping to create the most uplifting story to come out of Florida since the invention of thongs.

The manager of a St. Petersburg Starbucks said that the chain of goodwill was kicked off by a woman in her mid-60s. A nice gesture, but wouldn't have become a viral story if the person behind her grabbed their free drink, yelled "score!" and drove off. Instead, that person made the decision to pay for the next person, who paid for the next person, and so on for the next 11 hours until buzzkill customer 379 decided to poop in the proverbial punchbowl. 

Sources: Huffington Post | BayNews9