Where I work uses a fish as a logo. We have an internal MSN / chat type application, which is displayed as a small fish in your task bar. It's actual name is 'Agora', but in this department it's known as "Billy". So "I'll Billy them" means to contact via Agora... It gets amusing when you use the terminology to another department that hasn't got a clue what you're on about, although slowly more teams are adopting it! It also has it's own Facebook group..
Anyway... moving on...