Part of becoming a self-actualized adult is learning when it is appropriate to say no without defending or explaining yourself.
Because explaining and defending dilutes the power of your no, not to mention raise your blood pressure, cause your scalp to itch, and make you to sweat under your arms and in other places. (Can I get a collective Ew?!)
Seriously, save yourself the stress and remember the following:
No is a complete sentence.
Call to action: In the comments, share with us if it is easy or hard for you to just say no… and then zip your lips?