Here are some tips that actually work in trying to soothe your appetite from accidentally revealing an NDA,
- lock yourself alone in the car and scream it out loud
- take a cold shower
- write it down on a piece of paper and set it on fire afterwards
- eloquently tell it to your pet dog, cat or fish and make him / her promise not to tell anyone
For reference, Wikipedia outlines the definition of an NDA:
A non-disclosure agreement (NDA), also called a confidential disclosure agreement (CDA), confidentiality agreement or secrecy agreement, is a legal contract between at least two parties that outlines confidential materials or knowledge the parties wish to share with one another for certain purposes, but wish to restrict from generalized use. In other words, it is a contract through which the parties agree not to disclose information covered by the agreement. In rare cases, the contract may state that the existence of the NDA itself cannot be disclosed.  An NDA creates a confidential relationship between the parties to protect any type of trade secret. As such, an NDA can protect non-public business information.