when the cat's away the mice will play
In the absence of a controlling entity, subordinates will take advantage of circumstances.
ADJ.
distinct, good
The laboratory had distinct mice strains that researchers used for different experiments.
VERB + MICE
catch, catches, exterminate, field, house, keeps, laid, plans
The cat catches mice in the barn every night during summer.
MICE + NOUN
he's, men, purpose
The laboratory mice he's been studying for months finally showed the expected results.
PREP.
from, in, up
We found mice in the attic last winter and had to call an exterminator.
ADV.
away, often
The cat chased the mice away from the kitchen counter.