This custom was very unusual. In Montenegro, there is no this custom.

This custom is generally practiced amongst Serbs in western Serbia (Azbukovica, Podrinje, Podgorina, Rađevina, Mačva and Kolubara region) and Republic of Srpska (eastern Hercegovina, Semberija and Romanija region).

These regions, apart from the linguistic differentiation of ekavian and ijekavijan narečje, culturally cluster together, so it's quite common that we share the same customs.