Mad, I Say Mad

Will someone please tell me what crazy is?
Whenever our opinions differ, I'm crazy.
When we agree, I'm brilliant.
If I say nothing, and disagree only in my mind,
then I'm normal, whatever that is.
Are you also the custodian of that definition?

When you are the self-appointed maker
of the rules, there is no way I can stay within
the secret boundaries you set anew for each situation.
This means I can make no move, attempt no
communication without stepping over the invisible moving line,
This must be a very lovely and frustrating place for you to be.

Please mark me down as crazy
and leave me out of the next round.
I'll be too busy just being here.
If you tire of the game
and want to look me up,
just ask anyone where the crazy lady is.