“Learn to say ‘no’ without explaining yourself.” [Unknown]
So much has been written — including at this website — on how to avoid the toxic influences of a narcissist, a sociopath or what-have-you.
Really: This is just about all you need.
If you need or want the loyalty of someone in some context — personally, professionally — that’s one thing. Then you WANT to give them your reasoning, even if they don’t ask for it.
But if someone demands your reasoning as an entitlement … watch out!
Michael J. Hurd, Daily Dose of Reason