The difference between a chef and a cook

They flipped a coin.
Bob won. “You type.”
When Terrence typed “Cook” in the field for Occupation, Bob balked.
“He’s a chef, not a cook,” said Bob.
“There is no difference between chef and cook,” said Terrence. “Chefs are professional cooks, and professional only means that you’re getting paid.”
“Professionalism means more than just payment,” said Bob. “There’s an element of experience, and dedication you’re leaving out.”
“Fine,” said Terrence. As always, he got out the correction fluid, painted over “Cook” and typed in “Chef.”
“Thank you,” said Bob. “So, what does the coroner think?”
“Ahem. Medical examiner.”
Bob groaned.