Nothing of the kind/sort
Definition 1 of 2
Pro Tip 1/3Strong Denial
Use when you need to deny accusations or assumptions very clearly. 
She accused me of taking her notes, but I had done nothing of the kind.
Pro Tip 2/3No Confusion
It's useful when you want to clear up any misunderstandings. 
You might think I agreed to those terms, but I did nothing of the kind.
Pro Tip 3/3Clarify Reality
Emphasizes that the real situation is different from what was suggested. 
The rumor was that I had quit my job, but I did nothing of the kind.