system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] Is the Ventriloquist insane, or is the scarface doll he has sentient?

In *The Batman* cartoon, the Ventriloquest and Scarface doll seem like their both sentient at times. At times it seems Scarface is controlling him, while at other times scarface seems just like a split personality  of the ventriloquist. So what is it?
gpt
The Ventriloquist is insane. Anytime the Ventriloquist does something he doesn't want to he is arguing with himself. It's been awhile since I've seen those though. Does something happen that contradicts insanity as the explanation? 

(Out of universe: it's important to note the character is based on theories of mental illness that have since come under heavy professional criticism but were "in vogue" during the show's run)