1. Public
2. PRIVATE
   1. Physical damage
      1. sT. HELEN smelting v TIPPING
      2. SCHANK
   2. non-physical/emotional damage
      1. 5 tests
         1. Locality
            1. STURRIDGE v BRIDGEMAN
            2. Halsey v Esso
            3. Greenidge v BLP
         2. adverse/special
            1. Khulvert v Robinson
         3. DURATION
            1. Handschutter v Parkhill
            2. Kaiser Hotel v SPICE BROTHERS
            3. CELEON V HUNT
         4. UTILITY
            1. ST hELEN SMELTING V TIPPING
            2. SCHENK v PROV ONTARIO
         5. MALICE
            1. BRADFORD corp v PICKLES
            2. cf:OUTAR v SOOKRAM
3. Conditions
   1. naturally occuring physical damage such as tree
   2. physical damage via escape:St Helen smelting v Tipping
   3. affecting sensibilities of P
      1. Khoransanjian v Bush:
      2. cf:sowark v Miller
      3. THOMPSON-SCHWAB v ACKEE
   4. Abuse of Easement