Season 2 missed joke?

I’m in a continuous loop of rewatching Superstore and am now in Season 2 again. I just caught a humorous comment for the first time and wonder if most other people caught it and I’m the clueless one. I don’t recall the episode, but Garrett asks Dina if he can leave early and says that Brett offered to cover for him. Brett, who never speaks, doing the announcements!?!?