And Kara knows the kid's an android the entire time but is in denial so that makes it even more annoying.
Literally all androids know the kid's an android on sight and none of them say a damn thing, even Connor. The kid herself is aware that she's an android and yet never asks why Kara keeps trying to feed her. The creepy android collector only lets them in when he sees the kid android and even he doesn't quite spell it out besides having no reason not to.
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"One toot on this whistle will take you to a far away land." -Toad, SMB3