I like the idea of The Siren / The Mermaid as it represents man's mental weakness to the allure of a beautiful woman. The woman's power of manipulation over a man, or man's psychological vulnerabilities. The representation of the prize-bodied woman being skin-deep, that there's an underlying danger about her...that, as tempting as she may be, she leads weak men to their demise...and thats what can separate a foolish boy to a wise man, their ability to not be distracted by the Siren's call, or the empowering representation of self-control, or having wits about you to not fall for the trap that is a high-maintenance bitchy and miserable self-destructive relationship.