Those are called the zoomies around here. Someone described them as "a rabbit on crack". lol It is very normal Yorkie behavior. Do a search for "zoomies". I think you'll be surprised.
I do not believe it's a "bad habit"or anything. It's just a part of who they are.
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The fullness of our heart is expressed in our eyes, in our touch, in what we write, in what we say, in the way we walk, the way we receive, the way we need. -Mother Teresa (
RIP Gizmo 3/9/07-8/18/12)