Say you have a jersey of your favorite sports star. As is, it's worth about as much as you paid for it. But if the jersey were to contain the signature of that player, it would be worth a lot more because it'd be considered a collectible. Knowing this, would you ever consider faking the signature of the player in order to make your jersey worth more money?
If you have, then you may want to stop before you act because doing so could be considered a criminal offense and could lead to punishment on the state and/or federal level. That's because forging a signature of sports memorabilia is considered fraud, which carries serious penalties if you are convicted of committing this white collar crime.