Answer: No, I think deception is never necessary. I think that deception is just a trick to always get whatever you want, which is very wrong and selfish. The only time deception may be acceptable to me is when you are in a very important argument where you or a friend could be in harms way. A possible example of this is when you, or a friend is getting in trouble for something you did not do. Do everything you can, including deception, to get out of that situation.
The word would be extrinsic. Extrinsic means "<span>not part of the essential nature of someone or something; coming or operating from outside."</span>
