usually the animal has more of a chance of leaving between hobbies. like they wanted fossils, and stopped and wasn't sure what to do( they'll be in a confused state)they'll move, or go to another hobby. And the longer they've been there in your town, the more likely to move. If they want something, like pink furniture, it is best not to give them the item, because sooner or later they will be done with that hobby.There are some cheat codes you can do, but I highly recommand NOT to use them. They can permantly mees up your game, but some seeds are ok. If you have any questions contact me. Hope this helps.