I keep reading things about how calm they are, but are the calmer ones more friendly? My mom wants a couple of ducks that will follow her around the yard and keep her company when she's gardening (which she does a lot). She loves ducks and had them as a kid, and I'm finally convincing her to get some more, or, rather, let me get some. However, seeing as how I'm leaving for college next year, I want to make sure the ducks will be exactly what she wants as well. I am super new to this, but have been doing my best to research all requirements and different breeds--there is a lot to take in. I guess the most important thing is, really, what type of ducks should we get? Which are the easiest and most friendly?