The only thing i hate about those small characters, is that you have to remove all grass in order to even take a picture of them, because the grass not only block them from taking pictures, but all of those small ones LOVES to sit around in those tall grass.
(and the grass is not tall enough to hide yourself in it, but tall enough for them to do so and your camera)
That, and because its insanely hard to get their monsutra pose so that you can have fun with them when you become friendly or when you try entice them to join you.