My dad's kitten

We're terrified of it. He thinks humans are not for cute cuddling but to climb up claws out and bite. He's ferocious and doesn't stop. You wave your hand as you talk and he's jumping up to grab on to it. I swear it's hyperactivity in a cat mixed with crocodile wrestling. When we visit we have to ask for him to be shut in another room otherwise it won't be long before we're wondering what the sharp pain is. Is this what they mean when they say families can be stressful?