"We should go to the mall!" One of your sister's friends says.
"Oh good idea that'll be fun. Plus my sister has plenty of money and I'm sure she'll be happy to buy us stuff."
You reluctantly follow them to the mall. On the way there you look in your wallet and see it's now full of several hundred if not a thousand dollars worth of cash and you can already tell you'll buy almost anything your sister or her friends ask you too. Soon you all arrive at the mall.