"If you want to ward off bad visitors, get your pet to hate that person too. Then, you have the option to attack them. And they most likely will not want to come back again!" - Laura

"The cat and dog will sometimes entertain themselves, so their fun will rise and you don't have to worry about playing with them." - Somone

"You don't have to buy a pet. You can adopt one. All you have to do is find a stray and get it to like you. Then a little thing will pop up asking if you would like to adopt that pet. You cant choose the gender or the breed of the pet.
" - Dancesuperstar23

"When you buy a pet be sure to hang out with it for a little while before you buy another one, that way you don't have two dogs or cats that drive you crazy. =)" - DaSimsGrl555

"If you want to get rid of all those annoying strays in your yard, start a sim who befriends and adopts them all. Then move that sim out of the neighborhood (delete them if you want to) The strays will be gone, and will not be replaced by new stray animals." - Galina

"instead of telling a sim-parent or sim-child to tidy up the pets dirties just click shift+ctrl+alt+c and then click on the dirty (pooh or widdle) and then click delete!" - jay jay

"If you keep shooing an animal that is not yours from your property, they won't come back." - Jildo