Estoppel – Proprietary estoppel. The claimant son had established an equity in his favour in relation to his claim for an interest in a dairy farm owned by his defendant parents. Accordingly, the Chancery division held that the appropriate remedy to satisfy the claimant's equity was a lump sum payment which reflected, among other things, 50% after tax of the market value of the dairy farming business, and 40% after tax of the market value of the freehold land and buildings at the farm.