HOUSTON, Texas -- A customer is being called a hero after pulling a gun on two armed robbery suspects at a Houston restaurant.

It happened just after 8 p.m. Saturday at K&S Seafood Bar and Grill in the 7000 block of North Gessner Road.

Koy Sam and his wife were closing at the time and two customers were finishing their meals when two men walked in with guns.

"All of a sudden my wife ran back panicking," Sam said.

One of them forced the couple to the ground while the other went for the register.

He never made it because a customer confronted him with a gun.

"He was amazing," Sam said. "He absolutely kept us all calm, made sure everything was okay."

As the customer held one suspect for police, he fired as the other suspect ran off. The bullets shattered the front windows of the restaurant.

The second suspect got away and it's not clear if he was hit.

But the crime is helping business. Conservative radio is urging listeners to eat there, as people like Thomas Bazan go door to door handing out fliers for K&S.

"There's wickedness and evil," Bazan said. "And we need to stand up against it and fight back."

Bazan's wife said the customer's act even inspired her to get her CHL.

Though no one was hurt and nothing was taken, Sam said he will soon have a surveillance system up and running.

Police are looking into whether the men could be connected to other recent armed robberies.