The first listing is always the other person....always, "Sean and I," never "Me and Sean." Besides, Sean and I are the subjects, so Sean and I would still be correct.

I would for college educated supervisors who area always saying "Give it to Jim and I." When I is is "You give it to Jim and me."

All this may seem like quibbling, however there need be some rules for us to follow, otherwise we just all do what we want.