Lisa Amstrong has shared a rather cryptic message on Instagram, amid reports that she could soon be in a legal battle with ex-husband Ant McPartlin over custody of their dog Hurley.The make-up artist, 47, shared a mysterious message that read: "Completely ruthless when p****d off," followed by a string of laughing emojis. Lisa and Ant separated in 2018, and share custody of their chocolate Labrador. Ant is now married to his former personal assistant, Anne-Marie, with the pair tying the knot in 2021.