Great question Alex. The reason I know that I'm fluent in English is because it is the language I use to communicate love. Love of life, love of God and love of the loves of my life. When you are in love, whether it be with a concept, a spiritual entity or with a man or a woman - if "I love you" spills out in a language, you know that you are fluent. As for me, I am confined by the Anglocentricity of "Queen Victoria's Curse" and the insincere limits of Google Translate, so for now I am limited to "I love you".

The question should be "What is your favourite song?" The description should be: "I think music helps us to be happy and to muster willpower to solve life's problems... do you agree?" ... or something similar.

Yes - it means a psychological / psychiatric disorder. The word 'complex' can also be used to describe something that is complicated (the complex mathematical problem) or even a group of buildings (the shopping centre complex). If you want to be very clever, you can use all three variants together in one sentence, to describe the mental disorder somebody has when they are afraid of complicated groups of buildings :o They have a "complex complex complex" :o :o :o !!!!

Ah I get it now - you took out a $50 insurance policy against the tree and made sure nobody was around to see you cut it down. Very clever "Alex", if that's even your name.