All pups use there mouth to a greater or lesser extent depending on breed. Anything gundoggy, such as spaniels or labs are a little orally fixated, they like to have things in their mouths. I would go down the line of the toy, kcs are not known for their bravery, so getting heavy on them will just make them feel more vulnerable. Squealing does work with some dogs, but not all, it can make some pups more exited, and bite more. Be aware that although you have a small dog it does not necessarily enjoy being picked up and excessive handling may make the biting worse. It is a dog whatever its size, give it something to do, such as working for its food, put it in akong, so it gets to chew and eat. With the exeption of feeding toys, most toys are only any fun if someone else is playing. Good luck