A teenager from Plymouth faces jail after he attacked a man he thought was coming on to him.

Liam O’Brien, 18, punched and kicked the victim on the floor because he believed he was exposing himself deliberately, Plymouth magistrates’ court heard.

However, the victim was a man whose trousers were “in disarray” after he drunkenly urinated in the street, the Plymouth Herald reports.

He suffered bruises and grazes after the attack last April in the city centre.

O’Brien was convicted of assault causing actual bodily harm, which put him in breach of earlier convictions for theft and assault.

He was released on bail to return for sentencing in February and has been warned he can expect a custodial sentence.