An argument that broke out between two brothers ended with a possible concussion.
Joseph Kyle Francis Conrad's younger brother was baking a cake in their family home when Conrad questioned his ability to read, Whanganui District Court heard this week.
Conrad's brother, who is four years younger than him, replied that he could read.
But he was later questioned again by Conrad.
"It's none of your business, go away," the brother replied, police prosecutor Sergeant Rachel Willemsen told the court.