Animal blood is easy-—
Hunters....lots of folks have deer, boar, turkey they dress in their back yards or garages. So yeah, blood isn’t uncommon in some homes. It’s an easy “Friend shot a deer, I finished cutting it up here on this table then put it in the freezer.”
My husband hunted. They said that garage was very cluttered and in the spot where they found blood they were commenting on how little space there really was there.
Would you dress that close to child’s car seat? I don’t think they thought for a minute Cesar was a hunter. Just my opinion though....