It is said that you should never work with children and animals, but I don't find that this the case at all.
Take this photo session with Sasha for example, she was so well behaved and just loved being the centre of everyone’s attention. The key I have found is to spend time getting to know the subject and playing with them, she loved her ball and once I started throwing it around the back garden she became my best friend for the duration of the shoot.
Animals, along with children can get board easy so it is good to have things to occupy them during the session. This also has the benefit of getting great interaction and poses that come naturally rather than forced. Who has been in the situation when a family member came around and you had to sit still and say cheese, I look back on these types of photo and cringe. So much better to spend time and get natural images that you can look back on in years to come, which will spark a good memory.