They’re so like humans. Even the Beatles have remarked on it.
https://www.youtube.com/watch?v=8KGizYSCa-c
Just watched a video of dogs being coaxed into the bathroom for a bath. Each expressed their displeasure in various ways: one slumped against a hallway wall, and with a series of frustrated and lengthy vocalizations, "talked" about the indignity of it all—not exactly human—but close... ;)