The Madness Of Twimper - Poem

Here we go again:
Twimper poetry can be strange
But don't you worry
I'm only SLIGHTLY deranged.

If you look closely
You'll see where I'm unhinged
Right near the top,
Just under the fridge.

I've been called me 'mad'
And I talk to my self
But I'm still very friendly ^_^
Oh! What's that on the shelf?

Have you noticed this smile: ^_^
It keeps popping up
And I can't find anything to rhyme with that
So I'm just going to give up.