B and C Owned Adjacent Houses in a Subdivision

B and C owned adjacent houses in a subdivision. B's house and lot were located on slightly higher ground than C's, and the natural flow of water was downhill towards C's house. The two houses were separated by a 2.5-metre wide driveway, of which each owned one-half. One day, B changed the location of the eavestrough downspout on his house to direct the flow of water from his roof across the driveway, which sloped towards C's house. The first heavy rain resulted in the flooding of C's basement, because B had directed all of the rain which had collected on his roof towards and into C's basement window. B is liable for trespass by directing the rainwater collected on his roof towards C's property, if he did so with the intention of flooding C's basement.