My dog whines when he chews a squeaky
My dog has plenty of squeakies, and I personally don't like him chewing on them (beside the point). Whenever my dog is alone and chewing on a squeaky, he will whine. It's pretty funny, but he only does this with squeakies, not anything else, and usually only when he is alone, although I have been looking right at him when he does it.
Is it normal for a dog to do this?