fox in the henhouse

fox in the henhouse

Someone with bad intentions. (A fox would prey upon hens in a henhouse.) I'd watch out for him if I were you—he walks around here like a fox in the henhouse.
See also: fox, henhouse
References in periodicals archive ?
The Fox in the Henhouse By Si Kahn and Elizabeth Minnich San Francisco: Berrett-Koehler, 2005 320 pages; $14.
The Fox in the Henhouse calls much needed attention to the epidemic of privatization, which is transforming public services without meaningful discussion.