Sandy is going wild over the fact that she will have to hibernate in a week.

SpongeBob and Patrick find out that you can borrow anything without permission as long as you return it, or that's what wise Mr. Krabs says. SpongeBob and Patrick want a balloon, but neither one has any money, so they "borrow" it and it pops. They decide to run away and live like criminals, because they think they're now "thieves."