Based on the given tweet, determine the level of anger the author is experiencing. Choose from the following options: 0: no anger can be inferred, 1: low amount of anger can be inferred, 2: moderate amount of anger can be inferred, 3: high amount of anger can be inferred.
Tweet: Some bloke on the train who's obviously trying to provoke West Ham fans by loudly slagging off the stadium to his mate on the phone
1: low amount of anger can be inferred