Anybody with some sense knows you don't leave the fox in charge of the henhouse.
From the latimes.com
Even professional investors are consumed with fox-minding-the-henhouse worries.
From the businessweek.com
As long as the foxes continue to guard the henhouse, many eggs will go missing.
From the sfgate.com
They'd walk to the henhouse, scoop up the eggs for their rich, buttery doughs.
From the kentucky.com
The complaints to the FBI were a case of asking the fox to guard the henhouse.
From the kentucky.com
He worries that subprime foxes have been invited into the appraisal henhouse.
From the businessweek.com
Sending him to the Senate would be like putting a crafty fox in the henhouse.
From the kentucky.com
It's taking the word of the fox that he isn't abusing the chickens in the henhouse.
From the washingtontimes.com
The geese try to make it to the henhouse without getting tagged by the fox.
From the omaha.com
More examples
Chicken coop: a farm building for housing poultry
A chicken coop is a building where chickens are kept. Inside there are often nest boxes for egg laying and perches on which the birds can sleep, although coops for meat birds seldom have either of these features.
A small house or hutch for chickens or, more specifically, hens to live in