Amdon and his chemistry.

TEACHER: "Now class, yesterday we were learning about chemical formulas and now I am going to ask you a few questions. Amdon! get up and tell me the chemical formula for water".

Amdon slowly got up looking very confident and said; "IJKLMN".

TEACHER: "Why Amdon, it's wrong"

AMDON: "How come it's the wrong answer teacher? yesterday you said it is H to O".