In the beginning of the 3rd CD when the man-servant has been told by the Prince that the Prince is actually a dog, he gets stabbed by the Queen. The Queen stabbed him from behind (you can clearly hear it's a stab not a slash)and the blood gushed out through his fingers as he held his hand to his neck. So the knife had to enter through the back of his neck and the tip had to come out the front for the blood to come through his fingers.

Watch closely as he falls back on the bed and rolls from his back to his side. He is on a white sheet. Where is the blood on the sheet from the wound?