Crown prosecutor Rebecca Mann yesterday told the jury of three women and nine men in the High Court at Hamilton that it was the third time that the teenager had broken into Burr snr's home, looking to steal his car again.
She said Burr snr was hit over the head in a tussle with the teen's girlfriend after he'd got out of bed. The teen had heard a ruckus and went to help her.
However, Burr snr armed himself with a shotgun, which he used to threaten the pair until police arrived.
Burr snr also called his son who, the Crown alleges, as soon as he arrived unleashed an attack on the teen during which the tip of his little finger was sawn off with a butter knife.
A video interview with the teen, now 19, was played to the jury yesterday. He explained how a stick was used to "hammer" the butter knife into his finger and help slice it off.
When Mann asked what he was doing at the Burr house again, the boy replied "Oh, to go grab the car again".
Under cross-examination by Burr's defence counsel Philip Morgan QC, the boy admitted breaking into Burr snr's house a third time, including a week earlier, taking the keys and wallet from the pocket of Burr's pants, which were hung over a chair in the dining room.
In questioning him about the latest burglary, Morgan said the boy had accompanied his girlfriend down the hallway to Burr's bedroom; each armed with a wine bottle and he with a knife and torch.
"Yep," he replied.
"Then you woke him up by saying 'give me your f*****g keys or I will kill you?" Morgan asked.
"Yeah, that's what I said," the teen replied.
He also admitted having been driven down from Auckland that night, drinking Cody's bourbon and smoking marijuana during the three-hour journey, before a brief stop in Te Kuiti, then heading to Burr snr's house to again steal his car.
The teen said it was his girlfriend who hit Burr first as he lay in bed, then he did.
"Yep, he was lying down on the bed and then I smacked him."
When asked why he also had a broom, the teen replied, "for a weapon".
"So you had got together two wine bottles, a knife and a broom to deal with Mr Burr," Morgan asked.
"Yep," he replied.
A scuffle then erupted that lasted several minutes which only ended once Burr snr said he had given up and that the teen could take his keys, which he told him were back in the kitchen.
Burr snr told him to go look for them again in the kitchen. The teen ruffled around, swearing and threatening to kill him while armed with his weapons.
The girlfriend also ended up in the kitchen when he saw Burr snr, standing just in his undies, armed with a shotgun pointed at them.
The first 111 call Burr snr first made was also played to the jury.
"Don't move or I will shoot you bastards," he says at the pair as he talks to the operator.
Shaun Burr then arrived, and the teen admitted in questioning with Morgan, that he tried to get up but then was punched to the ground by Burr jnr.
He was then asked repeatedly to put both his hands out in front of him - as he was laying on his left hand holding a knife.
When questioned why he held the knife under his body, the teen replied, "to stab them".
"And when you were going to get to your feet were you going to stab them," Morgan asked him?
"Yep."
It was then Burr snr said that if he didn't put his left hand out, that he could cut off his finger.
The teen said he refused so Burr jnr started cutting his finger before getting a piece of wood and banging it down on the butter knife.
"But you didn't feel it," Morgan asked?
"Nah," he said.
Asked what he was going to do to the Burrs if his friends arrived to help him, the teen said, "f*** them up".
Piopio Constable Tony Schrafft then arrived and took photos of the teen' lying on the ground.
He was asked by Schrafft if he was okay and replied, "yeah".
"And then you went on to say that you were going to f****** kill them," Morgan put to him.
"Yep," the teen replied.
He continues to give evidence and will soon be cross-examined by Burr jnr's counsel Simon Lance.
The trial is set down for a week and is being overseen by Justice Grant Powell.