Bargaining isnt easy for men haha, this is why women prefer to use, because she got oily tounge and flatter to get thier work. well we women are expert in bargaining, sometime its work, sometime it won’t, no garranty at all.
well before bargaining you have to ask him/her politly that will work for sure and a sweet voice always make sense haha. this is what we girls do. sometime its work and sometime not, its depend thats it
im not sure that trick will work, best of luck for yours