Based on the tweet "To go back in time to the 1st grade so you can walk up and shove your bully on the playground. Little asshole.\n#StupidReasonsToUseTimeTravel", categorize the level of anger felt by the author. Select from the following: 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.