1. Dogs: Some dogs may exhibit untrustworthy behavior if they've been mistreated or not properly trained. This can manifest as aggression, destructive behavior, or disobedience.
2. Cats: Cats may scratch furniture, exhibit aggressive behavior, or avoid interaction if they feel threatened or mistreated.
3. Parrots: These birds are known for their intelligence, but they can develop behavioral issues, such as biting or screaming, if not provided with proper care, attention, and training.
4. Horses: Horses may display untrustworthy behavior if they have been abused or improperly handled. They can become skittish, difficult to handle, or even aggressive.
5. Rabbits: Rabbits may exhibit destructive behavior, such as chewing on furniture or wires, if they feel stressed or neglected.
6. Hamsters: Improper handling or lack of socialization can lead to bites or defensive behavior in hamsters, eroding trust with their owners.
7. Guinea Pigs: These animals may become timid or aggressive if not handled gently or if their living conditions are not suitable.
8. Reptiles: Certain reptiles, like snakes or lizards, may exhibit defensive behavior if they feel threatened, potentially leading to bites or aggressive displays.
9. Ferrets: If not properly trained and socialized, ferrets may display nipping or biting behavior, potentially breaking the trust between them and their owners.