Analyze the following tweet to determine the level of anger expressed. The levels are: 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: Smartest way through any complex, hard &amp; lengthy negotiation is to #consult, not #insult - #BoJo please take note. Never too late to learn!