An armed 70-year-old grandmother used the gun her late mother gave her to shoot and wound an alleged home intruder attempting to break into her Philadelphia residence early Saturday morning.

Maxine Thompson told Fox 29 she woke up around 4:30 a.m. and heard banging outside her house. Police said a 43-year-old man attempted to break into the grandmother’s Philadelphia home at the time.

First I thought I was dreaming, and then I looked out the window, outside. I was still hearing the banging, banging, banging, so I yelled to whoever, ‘Who’s that on my door? Get off my door, get off my door,’” Thompson recalled.

Fox reports: Despite her warnings, the alleged burglar didn’t stop and continued to smash her dining room window and enter the house. Thompson, going into survival mode, grabbed her late mother’s handgun and shot at the suspect. She told Fox 29 it was her first time using the gun.

I shot at him. He turned around and he ran and when he ran, I ran down the steps behind him and shot at him some more,” the grandmother recalled. “Kill him before he kills me. That’s what was going through my mind.”

The alleged burglar was struck while Thompson fired at him several times. He ran to a nearby car wash and called police to report he’d been shot, Fox 29 reported. He was arrested, taken to the hospital and treated for a gunshot wound to his upper arm.

Thompson, whose son is a Philadelphia police officer, said the incident played out within 10 minutes. She recalled how the suspect could have killed her if she didn’t fire the gun.

After everything was over, then I did get a little shaky. He could’ve killed me,” the grandmother said.

She added that she hopes she taught the alleged home intruder and other people a lesson.

Stay the hell out of people’s houses,” Thompson said.

As for her broken window, she replied: “I have people that will come and fix this. It’ll be fixed in no time.”