Strawman Has a Point: When the pets suspect something's wrong when the owners haven't picked them up at the ranch, Chance insists to Shadow that they abandoned them, as humans do when they don't want their pets anymore. While Chance was ultimately wrong about their owners, the reality is that pet abandonment is a serious issue that affects countless animals, and is frequently caused by careless owners who don't have the responsibility to raise pets. In the sequel, Shadow and Sassy become aware of this after learning about Riley's past.
What an Idiot!: "There goes the bunny. There goes the pup. There goes breakfast."