You walk in to see an old general store. It looks to be out of the wild west. There are shelves from floor to ceiling containing all sorts of once useful items lost to time. Should you continue looking around or head back outside? There is no shopkeeper in sight, but you decide to look around anyway. Next to the cash register is a small wooded sign and as you look closer it reads;
To anyone who this may concern, take anything you would like
And leave the appropriate amount for said item on the counter.