can of worms(a complicated situation in which doing something to correct a problem leads to many more problems We thought the project would be simple, but it turned out to be a real can of worms. Our boss is reluctant to change the policy now because she doesn't want to open a can of worms. MWALD Alexander Demidov)
down the rabbit hole(Shoreline residents are finding themselves helplessly falling down a rabbit hole in their efforts to halt beach erosion. Val_Ships); hornet's nest(His comments stirred up a hornet's nest of angry opposition and criticism. Val_Ships)
