A professor was travelling by boat, on their way he asked the sailor: do you know biology? ecology? zoology?embryology and epidemology? No! said the sailor. The professor got angry and said what the hell do you know?You will die of ilitracy. One hour later the boat started sinking. the sailor looked at the professor and said: do u know swiminology and escapology from sharkology? No! said the professor. Well crocodileogy will eat your head and you wil die with your knowledgeology because of your mouthology! Qui a compris?.