Re: CHAT: Unconventional pronoun systemsshow us yours!

I think it'd be cool to have a split ergative system (ergative marking
for non-persons, accusative for persons and verbal markers), but deal
with indirect objects in bitransitive sentences differently in the two
systems. The scheme for people:

NOM case = ACTOR of transitive, argument of intransitive
ACC case = RECIPIENT of bitransitive, PATIENT of transitive
SECONDARY = PATIENT of bitransitive

The scheme for other things:

ERG = ACTOR of transitive
ABS = OBJECT of bitransitive, OBJECT of transitive, argument of intransitive
SECONDARY = RECIPIENT of bitransitive

This seems like a scheme that might actually occur, since recipient is
higher on the animacy scale than patient, so it seems like a non person
being the recipient of a bitransitive sentence would be more marked than
it being the patient, but you'd assume the opposite for a person. Are
there natural languages with split ergative systems which deal with
recipients differently depending on which case system is being used?