This alleged incident at a Wendy's in western Pennsylvania was reportedly far more serious than a customer demanding, "where's the beef?" It ended with an angry customer allegedly chasing a female Wendy's employee inside the restaurant, and the employee spraying the man with mace.

According to KDKA-TV, it began when a male driver with two female passengers rolled up to the drive-thru window at a Wendy's in the Bloomfield section of Pittsburgh around 1:45 a.m. Sunday.

After ordering food, the driver, who remains unidentified, allegedly threw garbage at the female Wendy's employee working the drive-thru window, according to the KDKA, which cites police.

The Wendy's worker ordered the customer to pick up the trash. Then, an argument broke out, with the Wendy's worker allegedly throwing a drink at the car, KDKA continues.

At that point, the driver parked the car, got out of the vehicle, forced open a rear door of the restaurant and entered.

Once inside in the Wendy's, the suspect allegedly pushed at least one employee and verbally threatened the female employee who had been working the drive-thru window, KDKA writes, adding:

This prompted the female employee to go for her personal belongings, and when the driver followed her, she grabbed a can of mace from her belongings and sprayed the driver, who then fled the scene.

The suspect remains at large, and the police investigation continues.