When Fifi tells his experience about being in the wild (which was highly exaggerated) we see the story from his exaggerated point of view. He got lost in his tomato garden in his backyard and in it he saw scary animals like a rabbit and a bird, one second they're normal then they pop out scary looking.
A rabbit is thrown into the road and a second later a truck comes and kills it. This scene will upset children, but some might not notice.
Dogs threaten to kill/injure two deer with zap-collars.
Camper tell stories of monster and ferocious bears that lurk in the forest, at that minute Boog (a bear) turns around growling, it is actually his stomach that is growling.
Rabbits are treated like objects in this movie and are killed, hurt, and treated badly by the other animals and humans for no reason at all.