Billy Poia Hohepa wasn't known for much in the way of violence, until he bashed two deaf strangers because of a t-shirt one of them was wearing.
For the attack at a Flaxmere service station forecourt on June 23 Hohepa, 30, was on Wednesday sentenced to six months' jail.
He had previously pleaded guilty to two charges of assault after punching and kicking on his perplexed victims.
Judge Geoff Rea said in the Hastings District Court that Hohepa was fortunate he hadn't been charged with something more serious.
According to a summary, the victims were refuelling their car when Hohepa approached, presenting himself as a gang member and expressing annoyance that a t-shirt worn by one victim appeared to make a link to a rival gang, although neither man was associated with any gang.