$500 is not much for an exchange office, they make much more a day. Nevertheless a fake can cause you trouble as you can be legally obliged to report it and par

$500 is not much for an exchange office, they make much more a day. Nevertheless a fake can cause you trouble as you can be legally obliged to report it and participate in a lot of paperwork. Even more trouble if you fail to detect it before you give it to somebody else.