Maiming people was sick behaviour and would be treated accordingly, Judge Eddie Paul told a Clyde youth convicted on two charges relating to "branding" teenagers with a heated cigarette lighter.
Daniel Trevor Nelson, 17, appeared in the Alexandra District Court and admitted injuring a 16-year-old boy with reckless disregard for others and a Crimes Act assault on a 15-year-old girl, at parties between October 1 and November 30 last year.
The male victim was left with two burn scars known as "smileys" on his face and the female victim received a similar scar on her upper thigh.
"The summary of facts makes disturbing reading ... disfiguring people is not good and I need full reports for this," Judge Paul said, remanding Nelson for sentencing on April 4.
The facts summary said the victims were both in the same social circle as Nelson. During one party, the male victim had fallen asleep in a chair after consuming half a bottle of gin.