What's the quickest you've known someone lose their licence after passing their test?

I know a girl who passed her test in the afternoon then drove to the pub to celebrate intending to leave her car in the car park overnight.

She was told car park would be locked and couldn't leave the car there, no problem there's a layby 50 metres down the road.

Got pulled by police in said layby, breathalysed and blew over. Lost her licence in a matter of hours after getting it.