Supergirl is picking up Comet from whatever stable he was staying at
Nobody tells Comet where he’s going to sleep.
(Supergirl Costume Tally: IIII — slight cape discrepancy!)
I don’t blame you, Comet. I’d bite her for trying to make you take a bit too. Seeing as you are a fully conscious being that shouldn’t really be treated like a normal horse.
And if you know he doesn’t like them, why do you keep trying to give him a bit?