anchor.diff:                  C:E:S ->
                       p("try_tc -> case failed: try post"),
                       (catch Post(State)),
  -                    p("try_tc -> case failed: done"),
  -                    {error, {case_catched, C, E, S}}
  +                    case megaco_test_global_sys_monitor:events() of
  +                        [] ->
  +                            p("try_tc -> case failed: done"),
  +                            {error, {case_catched, C, E, S}};
  +                        SysEvs ->
  +                            p("try_tc -> case failed with system event(s): "
  +                              "~n   ~p", [SysEvs]),
  +                            {skip, "TC failure with system events"}
  +                    end
               end
       catch
           throw:{skip, _} = SKIP:_ ->
  
positive.code: %%
  %% %CopyrightBegin%
  %% 
  %% Copyright Ericsson AB 1999-2019. All Rights Reserved.
  %% 
  %% Licensed under the Apache License, Version 2.0 (the "License");
  %% you may not use this file except in compliance with the License.
  
negative.code:             p("try_tc -> pre (exit) skip"),
              SKIP;
          C:E:S ->
              case megaco_test_global_sys_monitor:events() of
                  [] ->
                      p("try_tc -> pre failed: done"),
                      {error, {pre_catched, C, E, S}};
                  SysEvs ->
                      p("try_tc -> pre failed with system event(s): "
                        "~n   ~p", [SysEvs]),
                      {skip, "TC pre failure with system events"}
              end
      end.
  
  
  