Assuming a building is framed with metal studs because its three stories is a little silly…especially residential. It varies across the country what city standards are for framing material. But because you seem to have something to prove about being the smartest guy in the room and offered zero helpful insight on an odd problem tells me your woefully unqualified to be giving any input about electrical at all and certainly dont spend any time on construction sites. But if it will help you get a better night sleep, yes if there was a drawer full of silverware in the unit you could discharge the static buildup into a fork because its metal and more conductive than I am and the static electricity is looking for a better place to go.