A Minnesota Dairy Queen employee is being praised around the country for refusing to serve a woman who stole a blind customer's $20 bill — and then replacing the man's twenty dollars with money out of his own pocket.

"I expected to her to be like ‘Oh, sir, here you go,'" said Joey Prusak, recalling the moment he witnessed a woman in the Hopkins DQ where he works pick up a $20 bill that was dropped by the blind man in front of her in line.

"But she just stood there and watched him walk by and she then put it in her purse," he continued.

Prusak said the whole thing happened so quickly that he didn't have enough time to inform the man that he had dropped the money.

When the woman reached the counter, however, Prusak demanded she return the $20 to its rightful owner.

"I told her ‘Ma’am, you can either return the $20 bill or you can leave the store," Prusak told CBS Minnesota, "because I’m not going to serve someone as disrespectful as you."

After exchanging some angry words with Prusak, the woman eventually decided to leave.

But Prusak wasn't done setting things right just yet.

Once he was finished helping the other customers in line, Prusak approached the blind man, who was still inside the store eating, and pulled a $20 bill out of his own pocket.

"I felt like the right thing to do was to give him the money," Prusak told WCCO. "I said, 'You happened to the drop this.'"

The random act of kindness would have gone tragically unreported, were it not for a customer seated nearby who witnessed the whole thing, and decided to write a letter to DQ praising Prusak.

Once the letter reached the Main Street DQ's owner it was posted on the employee board for the rest to see.

It didn't remain in-store for long: A photo of the letter was eventually posted to Facebook by an employee, and from there it made its way to Reddit and the rest of the web.

According to Prusak, in addition to all the admiration he's received for his selfless gesture, he was also told the expect "something" in the mail from Dairy Queen's International HQ.

[screengrab via CBS Minnesota, letter via CityPages]