Frog in the Boiling Water

The expression, ‘a frog in boiling water’ is related to two scenarios.  In one case, you place a frog in a pot of cool water.  The frog remains since it perceives no danger.  You slowly raise the temperature of the water and because the change is gradual, the frog never quite appreciates its peril.  Eventually, the frog is boiled to death.  In the other case, you place a frog in boiling water.  The frog instantly perceives the danger and leaps out, saving itself.  The point is that things have gotten out of hand.  If you had been faced with the current situation you would have taken immediate action, but troubles crept up slowly and you didn’t appreciate it.