Sharon Glass took the stand in a Brevard County courtroom Thursday and said she feared the father of a 12-year-old boy who said the couple locked him in a closet or a bathroom, in a cage, and refused to give him food.

Glass, 48, and 38-year-old Michael Marshall were charged in 2012 with aggravated child abuse, plus a charge of aggravated child neglect.

Late Thursday afternoon Glass testified that she knew of what Marshall, her live-in boyfriend was doing to the boy.

She got emotional on the stand telling the court of one time when the father tied his son to his bunk bed for several hours.

"And he was telling me what he did, and I said 'you can't do this, you can't do this. You can't do these things'," Glass said.

Earlier in the day an interview was shown to jurors, between the boy and a DCF investigator. The 12-year-old spoke of being caged in a closet or locked in a bathroom for weeks at a time.

And when he would escape to find food in the house, and was caught, he'd be punished and the cycle would begin again.

Child: And after that, they put me in the bathroom.

Investigator: Which bathroom?

Child: My dad's.

Titusville Police said the boy weighed only 40 pounds when they found him in March of 2012. They characterized his condition as that of a concentration camp survivor -- he was dehydrated and malnourished.

Investigators said the couple was punishing the child for stealing food after it was withheld from him.

Investigator: And what did you intend to do with the toothpaste?

Child: One time I ate it.

He says he drank water from the bathroom sink, was only fed small amounts of noodles or canned food and complained to the adults about it, but it did no good.

Child: I need a certain amount of calories and nutrients, and I'm not getting very much of that. I don't get very many vegetables or meats.

The boy also told investigators he slept on the bathroom rug with just a towel to keep warm and was was rarely allowed to shower. He also said he never attended school for those several months.

The boy and two younger children have been staying with their grandmother.

Closing arguments in Glass' trial are set for Friday. Marshall has a hearing later this month on the same charges.