The doing any act by which the right of another to his commonis incommoded or diminished; as where one who has no right of common puts hiscattle into the land, or where one who has a right of common puts in cattle which arenot commonable. or surcharges the common; or where the owner of the land, or otherperson, incloses or otherwise obstructs it. 3 Bi. Comm. 237- 241; 3 Steph. Comm. 511, 512