Ten police officers arrived, seven carrying rifles, fanned out and surrounded the house.
''They must have been on the phone to him giving him instructions, which he followed when he came out.''
He walked out of the house with his hands in the air and lay down on the ground before being handcuffed and put in a patrol car.
The whole incident, which lasted about 30 minutes, was frightening, she said.
A police spokesperson said a report of a man ''acting threateningly'' in Frankton was received at 12.05pm.
The man had been arrested, and no one was injured in the incident.