Welcome! A word of warning though: things you should not request explanations about: 1) As stated, the man in the avatars. 2) Cheesecake 3) Monkey Island 4) Why Harry is always so happy 5) Everything Nexxo says. 6) Nothing CK says.
At the risk of spoiling things, a recent cake-related thread proved that if you badger people long enough with inane questions about an in-joke, someone (i.e. Bindi or RTT) will get weary and explain it. And the most important thing when trying to quickly resolve a debate in the Serious forum is to strongly disagree with everything Nexxo says!
