Rectal Anesthesia

I wrote this as a joke for my sister 15 years ago to cheer her up.

Don't call on me tonight
I'm quivering from fright
For tomorrow I shall have....Rectal Anesthesia.
Though this may sound astonishing,
I have a little pricky sting,
because of my ........Rectal Anesthesia.
No never will I have to cry,
from my suppository's sigh,
because of my ...Rectal Anesthesia.
Please quit, turn out the light.
I have to use a baby wipe.
Tomorrow I must go off to surgery of defecation.
And soon to my obituary classification.
Don't laugh when you read of my deadly
.................................................Rectal Anesthesia.