Step 1 : Introduction to the question "Where can you find the admonishment, "Organ transplants are best left to the professionals"?"
Since The Simpsons first broadcast on FOX in 1990, every opening credit sequence reveals Bart Simpson writing on a chalkboard. He is obviously at school and completing the well-known "write it 100 times" punishment. Each episode highlights a different sentence, written over and over. These are humorous statements, usually in the "I will not..." style that establishes young Bart as a troublemaker. This opening sequence sets the stage for the mayhem and chaos that is signatory for the beloved Simpsons. Source: TheSimpsonsHomepage.com; AIS.org