You knew it was severed when you saw it

Oliva,

If Attacked
Run towards a lighted house; yell "Fire!".
Spit on face, act bizarre, vomit.
Rip off glasses.
Step hard on foot (instep).
Aim at eyes; try to gouge eyes, scrape face.
Hit throat at Adam's apple ( larynx.)
Use fighting and screaming with caution, this may scare some although encourage others.
Try talking.
Make close observations.
Good luck.

Fred