A man was using a toilet at an RSA when an old high school friend burst through the door and, in an attack, knocked him out cold.
The attacker, Taranaki man Kyle Kettle, 46, was attending an event at the Waitara RSA on the evening of June 5 this year, New Plymouth District Court was told on Thursday.
Also at the function was the victim, who according to the police summary of facts attended high school with Kettle and also had a short-term relationship with Kettle's ex-wife about three years ago.
During the course of the evening, the victim ducked away from the event to use the bathroom at the pub.
He was followed by Kettle, who pushed open the cubicle door as the victim was in the process of urinating.