She soon left, and moments later police say two men, 20-year-old Darin Shelton of Chester and 18-year-old Rasheed Harris of Wilmington entered the bar.
The bartender asked them for ID, at which point Shelton allegedly brandished a handgun and said, "Here is my ID."
Police say a patron ran out of the bar, and Harris tried, unsuccessfully, to rob that person outside.
Then, investigators say, Shelton worked his way down the bar, robbing each customer one at a time, then robbed the bartender.
That's when things went wrong for the alleged bandits.
"My customer thought, well, 'He's going to blow me away.' So, he had a chance and he grabbed him and took the gun out of his hands," said a longtime bartender who did not want to be identified.
Seizing a window of opportunity, police say several customers grabbed Shelton, took him to the ground, struck him with a billiards stick, and got the gun away from him. The customers called 911, and held Shelton until police arrived.
Shelton was beaten so badly, an ambulance had to be called.
Harris and Smith, meanwhile, fled in a car up Interstate 95 into Pennsylvania, but they were soon stopped by a state police trooper.
Darin Shelton was treated and released from Christiana Hospital. Detectives were able to link Shelton to the Ridge Road Wawa robbery which occurred on November 12th.
Police add, he was also linked to a Governors Printz 7-Eleven Robbery from October 21st.
His brother, Rasheed Harris, was linked to these incidents as well.
Smith was only implicated in the George's Bar robbery.
Back at the bar, customers say they could've told the bandits that robbing their bar was a big mistake.
"There's always a lot of big guys in here, especially at that time of night," said customer Andy Douglas.
George's bark was open for business on Thursday, despite the overnight drama. Even the bartender was back, despite being held at gunpoint the night before.
"Times are tough now and I've got to work and make all the money I can," she said.