Language / The usage of: oboje, obaj, oba, obie [16]

I understand when to use obaj, oba, obie but I have trouble with oboje. The Słownik PWN claims oboje is only used for persons ("używany wyłącznie w odniesieniu do dwu osób różnej płci i do dwojga dzieci"), but then again one says "oboje drzwi" and not "obie/oba drzwi". What's the rule?

Thanks,
Arnaud

Language / Państwo macie ..., pan masz ... [5]

Hi,

I've heard native speakers use the second person together with pan/państwo, which sounds very odd to me. My impression is that using państwo together with a verb in the second person (plural) is an acceptable semi-formal form of address (I often heard it in PRL-era movies), whereas using pan/pani with the second person (singular) is really wrong and evokes poor education. However, both usages seem grammatically wrong to me.

Could some native speaker clarify this?

Thanks,
Arnaud