I am lucky to have never grown up without a pet, if it was not a dog it was a cat. I now have a cat called joey, and a dog called scooby. My cat eats and sleeps all day and rarely goes out, and the dog is mostly the same. but one thing they do have in common is the fact they are jealous of each other. If i stroke the dog the cat expects a stroke, and vice versa. Although both can be a nuisance at times, i would be lost without them.