Only jumping and stubbornness in the two flatties we have had. A little shedding, about 1/10 of a golden retriever. My flattie Gracie goes with me into the Home Depot store off leash, at least the Home Depot in the wealthy community. Any big dog, especially off leash, is not welcomed at the Home Depot located in a higher crime area. She will look at people but not approach them unless they bend down to greet her, which she loves.
