In a way it is; in the same way that 'we are all subject to the law of gravity' is in the comm rules. It's far too obvious to require inclusion.

Oh, btw, while I've got ahold of you. Feel free to bip me on gmail if you need company while elysium is off playing with tinsel. I don't tend to have a browser open, but will see any 'talk to me!' email you send, as my outlook is always on.