A thug who left his victim with half a skull following a brutal attack is set to be released after just four months.
Kyle Stephenson, 32, will be released from prison having served less than a fifth of his sentence for unprovoked one-punch assault on Braden Stromberg, 27.
The sickening incident in Bosolver, Derbyshire, last May left Braden in a two-week coma and he nearly died.
He lives in fear that a fall or knock to his head could kill him and must wear a helmet to protect his brain whenever he leaves the house.
Stephenson admitted causing grievous bodily harm and was jailed for one year and 10-and-a-half months in February.
His victim has slammed the decision to release him early.
He said: "I feel like it's robbed me of justice.
"Four months isn't even enough time for a house plant to grow. It's ridiculous. I've not even had my surgery yet and he’s out and able to live his life.
"All my family agree with me, they are all p***ed off basically. It's really shocking that he’s not even going to serve half of his sentence.
"He nearly ended my life and now he’s out free and he has absolutely no remorse."
Braden said he received the news in an email from the Ministry of Justice who said Stephenson will be made subject to a curfew and wear an electronic tag.
He added: “We thought he would be in prison for Christmas.
"That's not taking any freedom away from him at all or giving him any consequences for his actions.
"My life is on hold and he can start having drinks and barbecues with his family and I can't even go out myself."
Braden was attacked from behind by Stephenson, of Ilkeston, Derbyshire, as he walked to the shops after work with his then girlfriend.
The grounds worker was knocked unconscious after being punched in the face before smashing his head on the road which left him with severe brain swelling.
He was rushed to hospital where doctors battled to save his life by removing the right side of his skull during a three hour operation. Braden almost died and spent 15 days in an induced coma before making an incredible recovery which has stunned doctors.
He is now awaiting further surgery to insert a titanium plate to reconstruct his skull which he hopes will mean he can return to work.
Braden added: "Every doctor I have spoken to has said how lucky I am to not have woken up from the coma paralysed or in a vegetated state. They can’t believe it.
"There might be an inch of spinal fluid where my skull has been removed and then it’s just my brain unprotected.
“If I knocked this it could potentially be fatal. I am looking forward to having the operation done as it means life will be able to get back to normal.
“I have been told it is quite a risky operation as there is a possible chance of infection or further bleeds on the brain but it is my one chance to get back to work.
"Health wise I'm doing OK. I'm just waiting for my surgery. I had my pre op on June 6 and now I’m just waiting."
A Ministry of Justice spokesperson said: "This was a terrible crime and our thoughts are with Mr Stromberg and his family.
"Offenders must pass tough risk assessments before being approved for Home Detention Curfew and abide by strict rules, which if broken will see them returned to prison."