Oh, I have a few who've some troublesome habit or another, certainly. It's really a matter of getting to know them and what approach works best. Some might learn to behave if they find they're not allowed to have their favorite treat when they've been causing trouble, for example. Others might be obedient, but timid or flightly and thus prone to distraction.

In my experience, however, they seem to respond well to respect and care, even if that means enforcing the rules on occasion.