Ok this sounds like a weird one, but from the day we brought Wallee home we said he looks like he is hopping like a bunny when he is getting excited. If he and I play chase around the house he will scrunch down and hop all over the house. Last week a dog from up the street who he sees out on walks all the time came to our yard for a visit. Wallee was so excited he started doing his "bunny hop" all around the yard...It's hard to describe but is sure is just the typical running.