1. Don't make eye contact with the surface world.
2. All members must wear a fedora at all times.
3. The phrase "it's not my fault" is never acceptable in union discussions.
Article 4: All members are required to have a secret underground lair.
Article 5: All lairs must contain a minimum of 5 velvet paintings of the Chairman.
Article 6: No one is allowed to whistle while walking through the tunnels.
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