Poll or survey: Chances of freefalling woodlouse putting a dent in my forehead?

Opened my eyes this morning to see a woodlouse grinning down menacingly at me from his position 9'-10' above me on ceiling exactly over the centre of my forehead. Promptly closed my mouth and did an evasive dive over the dog. What I'm wondering is if he had jumped, would the height/velocity factor mean actual damage to my forehead along with a squidged bugbod?