"Please Watson?" Sherlock pleaded as Watson walked away from him.

"No Holmes! I don't want to!" Watson said to Sherlock over his shoulder.

Sherlock followed Watson into the sitting room and continued to bug Watson until Watson turned to face him.

"Holmes, I don't want to learn about chemical reactions!"

"But think of all the ways it could help you!"

Watson threw his hands up and cried, "I am a doctor, not a chemist!"