an ant may well destroy a whole dam

an ant may well destroy a whole dam

proverb A small problem can cause catastrophic damage if left unchecked. A: "I can't believe that minor leak totally rotted the floorboards in here." B: "Unfortunately, an ant may well destroy a whole dam."
See also: ant, dam, destroy, may, well, whole
Farlex Dictionary of Idioms.
See also:
  • ant
  • destroy
  • teach a man to fish
  • it takes a village
  • village
  • Beware of little expenses; a small leak will sink a great ship.
  • a trouble shared is a trouble halved
  • for want of a nail
  • For want of a nail the shoe was lost; for want of a shoe the horse ...
  • the best-laid plans go astray