Based on the tweet "Have to go to a occupational services place for a drug test. Yet they don't know what the heck is going on. Just great! #blah #😡", categorize the level of sadness felt by the author. Select from the following: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.