A DRUNK man who grabbed his penis, shook it and shouted at police he would hit them with it was fined $1500 when he appeared in Mandurah Magistrates Court today.

Kevin Ronald Turner (54) pleaded guilty to disorderly behaviour in a lockup, disorderly behaviour in public and obstructing police officers.

Police prosecutor Senior Constable Mick Fallows told court police attended a Halls Head home at 9.55pm on Australia Day after neighbours heard yelling and things being thrown.

Senior Constable Fallows said Turner was naked and intoxicated when the police arrived and Turner told them to “f*** off out of my address”.

Police asked Turner to step away from a large knife on the kitchen bench near his hand and he refused, but Turner also made no attempt to grab it.

Police said Turner kept standing close to the face of an officer, shouting at him, and spit hit the officer’s face.

Senior Constable Fallows said Turner called police “fat, ugly f***** c****” and refused to put on any clothes.

At one stage Turner grabbed his penis and shook it at police shouting he would hit them with it.

Senior Constable Fallows said a police officer attempted to restrain Turner to prevent personal injury and Turner shoved the officer before being arrested.

Police said as Turner was being arrested, he turned to a police officer and shouted “you’re a fat, ugly mole you f****** c***”.

When Turner was inside the police car, police said he kicked the door and shouted abuse at police as neighbours watched on.

At 11.15pm the same night, police said Turner was detained in police lockup for disorderly behaviour and still refused to put clothes on.

Police said Turner asked to go to the bathroom but then refused to go once he was allowed to by police; instead he urinated inside the cell and shouted abuse.

Turner’s defence laywer Russell Mark told court Turner was intoxicated at the time and had been drinking from lunchtime.

Mr Mark said Turner had taken medication on Australia Day – panadeine forte for a neck injury – and the combination of alcohol and the medication didn’t help.

The defence lawyer said Turner was naked as he had just come out of the shower when police arrived at his home.

Defence said Turner, who works for a mining company, felt embarrassed and regrettable.

Magistrate Anne Longden said Turner accepted his behaviour was appalling and he pleaded guilty at the earliest opportunity.

“It’s interesting you can’t recall the bits about the incident except the parts you wanted to dispute – your behaviour was unacceptable and criminal,” she said.

“You said you don’t normally act like this but all up these were serious offences like obstructing police officers.”

MORE: Man charged with historical child sex offences

MORE: Baldivis named bankruptcy capital of Australia

MORE: For our children’s sake we need to act on the curse of social media