That’s their trainer watching through that security camera by the way.
I mean come on, these two literally have an ongoing rivalry between themselves and you only are able to buy ONE food bowl? I mean come on, have you not seen how destructive their duels tend to be? You leave one of food before these two and it will either end up in the winner’s stomach or all over the super-scratched-up walls.

Moral of the Story?: if you’re a trainer of two rivaling pokemon at the same time, at least get them separate food bowls…