Eventually the miscreant was detected and banned but the damage was done by then.
From the en.wikipedia.org
One mailer attacked Butler for a vote supposedly to protect miscreant teachers.
From the sacbee.com
Airtime feels like Parker's grown-up attempt to reach back into his miscreant past.
From the techcrunch.com
Pardon the expression, but it seems the GOP has created its own miscreant offspring.
From the edition.cnn.com
Replace them one by one or in combinations to see if you can identify the miscreant.
From the guardian.co.uk
Hogg is wired, and his one-man show makes the most of his career as a minor miscreant.
From the orlandosentinel.com
How has such a perennial economic miscreant proven so resilient to the credit crunch?
From the economist.com
Some rogue miscreant in a copycat RV was terrorizing the neighborhood.
From the sfgate.com
Like every practiced school miscreant, he has an excuse for everything.
From the economist.com
More examples
Reprobate: a person without moral scruples
Miscreant is the first EP album from death metal band Skinless.
(Miscreants) A villain (also known in film and literature as the "bad guy", "black hat", or "heavy") is an "evil" character in a story, whether a historical narrative or, especially, a work of fiction. ...
One who has behaved badly, or illegally; One not restrained by moral principles; an unscrupulous villain; One who holds an incorrect religious belief; an unbeliever; Lacking in conscience or moral principles; unscrupulous; Holding an incorrect religious belief