Principle: No action lies for mere damages or loss, however substantial, caused by an act which does not infringe some legal right of the plaintiff. Facts: In order to ward-off the flow of water into his land from a stream, 'A' dug a trench and put up a bund on his land. As a result, the rainwater now flowed to 'B's land and caused damages. 'B' claimed damages from 'A'.