Hysterical rant

You might want to direct this rage at the RL locals who irresponsibly allow their cats to roam the neighborhood.
At least my cats ate their bird kills, and my dad's cat ate his mouse kills. My own cats were content to just kill the mice and let me dispose of the bodies once they were done playing with them. My dad discovered that his cat had created a "mouse crypt" in the cellar where he left the bones after he'd eaten what he wanted of them.