A pet?

Catalina wants a pet, it doesn´t matter which pet is, a horse, a dog or a cat. It´s believed my sister is not going to aceppt a pet at home. They live in a small apartement and my sister stars to work at 09:00 and finishes at 18:30, so they hardly ever get home before 19:00. In spite of this, Catalina insists on having one.

What about a lovely little deer?