Here's a cute one from https://ascii.co.uk/art/rat: 

        _
      ,-(_)-"""""--,,
    <  "             ";===""==,.
     `-../ )__... (  ,'        "==
       ==="    ,,==="   PG
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence