RE: Game 1 - Guess the date of the next major RNS:-3 Jan 2023 07:56
That's awful,and yes it may not directly be his fault,but it's his livestock within his duty of care that's destroyed your property.
Ask him if he's friendly for his insurance details and progress from there.
Dogs have a £3,000,000 or upto liability limit,so horses insurance should very well cover the damage Take photos asap.Goos luck.Approach with an understanding perspective,but be firm it needs repairing to its former state at his cost/insurance.