If any properly enclosed livestock, poultry, domestic rabbits or pets are killed or injured by 2 or more dogs at the same time and the dogs are kept by 2 or more owners or keepers, the owners or keepers are jointly and severally liable for the damage.
Joint and several liability
7 M.R.S. § 3963, under DAMAGE BY ANIMALS.
7 M.R.S. § 3963