I once sliced my hand through to the fat layer (orange chuny bits came out on the surface of the blade).  I was sitting outside on my porch carving a figurine like I always do after a long day but my dog saw a rabbit (she was standing behind me) and barked really loud, causing my knife to slip.  Suprisingly, it didn't even hurt, but I yelled out more from the horror of seeing blood and fat bits everywhere.