I remember when I was preparing the interior of my Challenger for paint, I put my hand inside the the c pillar which connects the wheelhouse panel with the roof, bare hands
. I sensed a rodent's hand
. Immediately I washed my hands very thorough and removed all of the soundproofing jute that was inside with wire. I saw what had remained of a long dead rodent and then I removed anything inside, cleaned - painted and never installed anything for soundproofing in that place again.