well it is an area that requires very careful use of language and definition
I used to debate alot with a lawyer, and he always found it highly amusing to use the tactic of obfuscation, and then suddenly reveal the real meaning of what he was saying, and then rip apart someone elses point in the process, making them look like a fool. Alot of people really resented him for it, but I found alot of his style quite enlightening. Since then I always try to make the definition of what I am saying blindingly obvious, then it is very hard to logically refute, as I believe I have done in this thread.