A student who had her Starbucks order paid for by a stranger was later branded "selfish" by disgruntled customers.
The 16-year-old woman, from the US, had stopped in at the store to pick up a coffee on her way to school.
Posting about the situation to Reddit, she explained that whilst waiting in the queue, the man in front of her decided he wanted to start a goodwill chain of paying for the order of the next person.
