Hangman's Etiquette

A copious feast for the soon to be pardoned.
The table lined with a ravishing presentation, as I've insisted.
A sight for sore eyes, a marvelous setting, a magnificent night for a bloodletting.
I am an incurable fiend, for my brain fascinates on unpleasant things,
the tumor and turmoil, they coincide,
they'll revel in solace when they found that I've died.
One last wish, they think they have granted,
For a neck tie, was all I've demanded.
A simple request, to visit the lavatory,
To make a slight change in my soon ending story.
My keeper, serenely escorting down the corridor, swiftly approaching our parting
With a neck tie, i'll bring upon intervention,
A noose made of silk, was my sole intention.
I make my advances to the steel pipes above,
Asphyxia come hither, from threads made with love.