the temp receptionist keeps calling me MUNCHKIN

i'm short enough where i get it quite often, but not by a fucking coworker that DOES NOT KNOW ME AT ALL =[ she also keeps calling me mandy now. help.
 
i would assign her a number and call her by it so as to personify/amplify the fact that she is merely another in a long line of temps and will be there for but a short time. this could potentially do much to demean her working status there and humble her, thus quietening her loud demeanor and dropping her to a meager status level that in turn could make her feel inferior and unworthy of referring to you and others as whatever she fancies.