Seminole, Aggie, same difference

A Seminole was down on his luck so he decided to go out and kidnap a child to get the ransom. He went to the park and snuck up on one of the kids. He grabbed him and took him behind a tree. He told the kid that he was kidnapped and pinned a note on the kid's shirt that read, "I have kidnapped your child. If you want to see him again, put $20,000 in a sack and leave it in front of the tree at the park. - A Seminole." He told the child to make sure his parents saw the note and sent the child home.

The next day the Seminole went to the tree to find the sack. He looked inside and found the money he had asked for and a note that read, "How could one Seminole do this to another Seminole"?