Away in a madhouse

Away in a madhouse, confined to my bed
From visions and nightmares that filled me with dread
The Doctor has sweetly inserted a probe
To sever completely my prefrontal lobe

Electroshock therapy, mind-numbing pills:
They change my behavior to cure all my ills
I love Arkham Asylum, my own padded cell
I'll stay here forever, for outside it's Hell