Rowlett police said a driver who blacked out behind the wheel drove his pickup truck right through a woman's house.
"That's one of the craziest things I have ever seen," said Joel Montemayor, who was behind the truck when it plowed into the house on Scenic Drive.
"I didn't know what to think," he said. "It was scary, I'll say that."
Carolyn Red's mother lives in the house that was hit. She was on the phone with her mom at the time of the crash.
"The phone disconnected; I immediately dialed 911," Red said.
Her mother escaped unharmed because she was in the back of the house, police said.
"We got here, and the truck was halfway inside the house," Officer Scott Fundling said.
Investigators said they believe the driver lost consciousness as he was driving to his home in the same Rowlett neighborhood.
"The police said it was someone who had just gotten their blood taken at the hospital," Red said. "Apparently, he had a hospital band on his wrist as well."
The driver was taken to a hospital with what police said were non-life-threatening injuries.
Police said the house suffered a tremendous amount of damage.
"The wall inside is knocked over; the stairs may have save it from completely caving in," Fundling said. "Everybody survived it, everybody's OK, so it was a good outcome."