After the stranger at the bar finished his meal, Green picked up his signed bill and was shocked by what she saw.
The stranger, whose bill was $51.28, left a $300 tip with a message.
"Enjoy your new laptop," the customer wrote on the bill. "Hope it helps with school."
"It was the nicest thing ever," Green told WLTX. "Hopefully I'll have that degree by 2018."
See more at WLTX.