So, today in art....Student 1:  Can't you read Mr. Smith?  Me:  No.  You have found out my secret.  I am illiterate.  Student 2:  You have to know how to read.  You're a teacher.  Me:  I teach art.  All I need to know how to do is draw.  Student 3:  That makes sense.  Student 2:  It's ok.  Just rub hands across this picture and read it.  Me:  Bhahahahaha...I am not blind.  I can see the words, I just can't read them.