Charlie is a 2 year old male and has been a special addition to the family (me thinks; wife doesn't) but he exhibits this strange shaking behavior. Whenever he gets up from lying, he shakes as if he is been soaking in a pool. Kind of like a Retriever exiting a lake or pond. With all of his metal tags on his collar, it can be quite noisy.

Is this normal or just a harmless quirk?