I've only had Missy 1.5 weeks, but I love that she thinks she's so tough. She often sees reflections in the sliding glass doors and she barks at them and doesn't back down! She is fearless! The only thing that I've found makes her a little leery is when I carry her down to the basement to do laundry. I think it may be the temperature change. It's a bit chilly. I also love that she bosses me around. Her bark sounds like a little squeaky toy. I swear she thinks she's a Rottweiller