Mood Stalker

When your having a great day and your mood is perfect ie.(happy,calm,content) and then someone comes along and does things intentionally to change the vibe ..thus "Mood stalking" and affecting your mood.

Say lady?.. Can you quit yelling and cussing at me..I am happy. Why you mood stalking me? That mood Stalker is trying to take a crap on my vibe..not cool!!