I noticed one thing about Island Living, it's probably not so much a bug as it is a funny, unintended result of the programming. While it makes sense that a sim who is not a mermaid would ask another sim if he/she is a mermaid and having the option to share the discovery if the sim is one, It doesn't make a lot of sense that one mermaid would have to ask another mermaid if that sim is a mermaid, wouldn't they already know?
Also if you make 2 mermaid sims and they have a mermaid child, the child apparently doesn't know that the parents are mermaids without asking them first and is then apparently excited by the discovery that mermaids exist enough to want to share the discovery, even though he or she is a mermaid themselves
