Maybe i am too stupid but i fail to achieve my desired outcome with the Owlbear.
Playing a Druid and using charm on the owlbear made me hope i can bring it to lie down and let me remove the spearhead from its eye and heal it up.
Charming it did not change the dialog in any way for me and i can only use my options to to avoid a fight.
I even tried talking it up alone as a cat, but wild shape cat seems not to be able to talk to animals at all.
Owlbears should have enough intelligence to let this happen, especially charmed.