It looks like LeiLei has something else in common with The Dafe, a passion for investigating. That's what a cat has to do when he/she is not allowed outdoors. In some places, it is a sad reality that cats should not go outside. It is unsafe. So instead of investigating things like trees, bushes, and car tires, cats like LeiLei and Dave focus on things like bathtubs, leftover food, trash cans, and other such items.