You should return found belongings to their rightful owner.
Sue is a cashier at a convenience store and a customer, Bart, left his hat behind when paying.
Sue wants to decide what to do.
Sue runs out after Bart and hands him his hat that he left behind.
Sue, having a few more customers decides to take care of them and assumes Bart will come back for his hat.
Bart is thankful to Sue for giving him back his hat, and he leaves a happy customer.
Bart drives away and when he realizes it's gone, can't remember where he left it, so now he has to buy a new one.