Things are not really as they seem... An old lady would cross from Brazil's border to Paraguay in the Friendship Bridge by bike, only taking with her a bag full of sand. Following the usual, the border inspector checked her and the bag, and seeing nothing illegal, he let her pass. She crossed the bridge everyday for about 1 year, until the inspector gave up to his curiosity and finally asked : "" Excuse me Mrs., i can't take it anymore. Everyday you pass through here with this bag, with nothing but sand inside it, please, i swear i won't fine you if you tell me what you do there."" Not trusting him at first, the old lady replied : ""Are you sure you're not going to fine me?"" The inspector, already bursting in curiosity eagerly, quickly answered : ""Yes, but please tell me already!"" The old lady, with a giggle in her face said : ""I get a new bike everyday.""