Billy's Donut Shop: His son's viral tweet about the donkey shop of a sad father in Missouri City, Texas, arouses a sweet reaction

When his father's donut shop in Texas was not successfully opened, Billy By tweeted how sad it was. This simple post on social media sparked a sweet reaction – and drew a line around the block.

"My father is sad because no one is coming to his new donut shop," wrote By, sharing a picture of his father behind the counter of his new store.

Billy's Donuts Shop in Missouri City, Texas opened last week and the first day was a flop. But thanks to By's tweet, the second day was very different.

People were lined up in front of the door and donuts were flying out of the shelves. By's tweet has received more than 300,000 retweets, one of which comes from Twitter's main account. The word about his father's shop spreading quickly, By also shared the address of all those interested in a visit. That caused some Twitter employees to go to Billy's Dount Shop – and they bought the whole store for all the customers, By writing on Twitter.

After this successful day, By changed his own Twitter profile to "Billy's Donuts". The mom-and-pop store that was once empty was now a viral sensation.

"So overwhelmed by all the support and all the love, thank you very much everyone, my heart is full," he tweeted. The next day he shared another update of the Billy's Donut Shop account: "We completely sold donuts and kolaches! You are all incredible. I can not thank everyone for coming out to support local businesses. my family."