I find that people of this character do thrive off of reactions! However, her constant picking is making time~bombs in the work place...someone is gonna loose their job kicking her tail! She needs to be confronted, but only after you put the NM or DON on point! These people thrive off of intimidation. Since she denies everything, pull her A** to the side give her a piece of your mine, and hell if she complains just deny it, its your word against hers...LOL!