Alan Hendricks' father was a nurse in the child and adolescent unit at Lake Alice Hospital and he threatened his son on more than one occasion that, if he did not behave, he would be sent there.
At the age of 13, the threat came true.
Hendricks has shared his story at the Royal Commission into Abuse in Care at a public hearing in Auckland.
He spent nine months in the unit between May 1974 and January 1975.
Once he was admitted to the unit his father, who has a different last name, was transferred to another unit at the hospital.
''I don't know if my father is still alive, it doesn't really worry me if he is or not. He had no clear conscience, that's obvious. How can you put your own child into a place you worked at knowing full well what was going on?''
''He knew bloody well. He used to tell me before I was ever admitted, I should take you out there. You wouldn't like it. He mentioned ECT and mentioned (the drug) paraldehyde and there was always those threats.''
He said Lake Alice was a very scary place.
While he was never given ECT, he was well aware it was being used as a punishment.
He said the ECT machine was wheeled about to scare them.
''You could have heard a pin drop. Everybody was shit scared.''
Hendricks said the children picked out for electric shocks were dragged away.
''You heard the screams, you heard the cries. It was horrible.''
Drug used as punishment
While never experiencing the electric shocks himself, he received the drug, paraldehyde, for supposedly being naughty.
''I was just a normal 13-year-old boy running around and being noisy.''
He and some other boys were lined up outside the surgery waiting their turn.
''The screams, the line getting shorter. You couldn't go anywhere, you had nowhere to go. You just knew your number was coming up because I was number six in line, and when my turn came I was given paraldehyde.
''I was held down by a nurse who injected me with paraldehyde. I can't explain the pain. It was like someone putting boiling water on your arm.''
''This needs to be individuals, such as Selwyn Leeks and my father, and also those who were in charge in government at the time who turned a blind eye to everything that was going on. They let this happen, and no one owned up to it.''
The chair of the commission, Judge Coral Shaw, told Hendricks that it was plain from all of his records that he never had any mental illness and that he was assessed as a highly intelligent adolescent who was not able to function anywhere near his ability due to a severe breakdown in his family.