“You have to work here, too?” the man asked, mentioning that his wife had been a teacher for 40 years.
An hour later, the man returned to buy some cookies. As he checked out he handed Garner an envelope and said “For the teacher,” CNN reported.
"I didn't get a chance to look at it for a bit, so I just smiled and put it in my apron," Garner told CNN.
When she went on break she opened the envelope and saw the cash.
There was no note in the envelope, CNN reported, so Garner didn't know how to thank "the kind gentleman with a British accent."
"You have no idea how much of a difference that made," she wrote on Facebook.