"Crocodile tears" - it expression is used many centuries by the different people and means false tears, a feigned regret. Really, when the crocodile kills production, at him from eyes tears flow. Why it occurs? Crocodiles can't chew, they break off the victim on pieces and swallow them entirely. On combination of circumstances, plaintive glands are located just near a throat, and process of food literally squeezes out tears of eyes of a crocodile.
