I'd go with 'explicit warning'
Nothing thinly veiled about it
(
benito vaselini no not that one, Fri 25 Jan 2019, 18:47,
Reply)
Can you stop saying things I agree with.
It feels all wrong!
(
eViLegion Chief Commissioner of the Scottish Lunacy Board, Fri 25 Jan 2019, 20:37,
Reply)