A 21-year-old man has been jailed for four months after posting an invitation to start a riot which appeared on Facebook for 20 minutes.
David Glyn Jones, of Bangor, Gwynedd, told friends: “Let’s start Bangor riots”, Caernarfon magistrates heard.
The court heard an ex-colleague saw the post and alerted the police.
Jones, who admitted an offence under the Communications Act, did not think it would be taken seriously, his solicitor said.
The court heard that Jones typed: “I don’t see why everyone’s complaining about the rioters.
“Given the chance I’d love to smash up a police car, wouldn’t you?”
The prosecution said the invitation, posted as a Facebook “event” on 9 August, was seen by a woman who had worked previously at a shop with Jones.
She reported it to her supervisor and police were alerted.