well the first one is definately an urban legend. Black widows lay eggs inside their web. Also they take 14 days too incubate. Also the black widow injects a tiny amount of venom into prey. They rarely ever kill a human. The second one just doesnt make sense. Mud shrimp are found on the west coast. Most lobster comes from the east coast. I will assume since the lady was from maine, that she bought a fresh lobster caught in maine. No mud shrimp live in that area.