5. Hedgehogs
Hedgehogs are nocturnal animals, so they generally get aggressive and annoyed when woken up in the middle of the day and start to bite. This means that they aren't very playful during the day, and instead wander around the house at night, making them one of the worst pets for kids, ever! If that isn't enough, hedgehogs are also considered to be exotic, so they need extensive care and a special environment to feel safe.