My face.
My dog has some leg issues, and was trying to reach the bed. I was going to help her get there by picking her up so she didn't try to jump and strain herself. As I was leaning down though she raised her head up really fast, and accidentally headbutted me. I feel like I was just punched in the jaw, and have a massive headache now stabbing into my eyes and temples. My lip is swollen, busted and bleeding, and my teeth are throbbing
from the impact. Mercifully, I don't think anything was knocked lose at least though.