Cliché:  Frog in a frying pan, Like a  
Cliché: Frog in a frying pan, Like a
Explanation: 1. Not knowing that something detrimental or fatal is happening until it is too late.
Country: United States 
Origin: We are not sure how this was discovered, but apparently if you place a frog in a cool frying pan, and slowly turn up the heat, the frog will not sense it and will cook to death.