Know-it-alls - particularly on social media but also at games - who spout utter sheeyite and have clearly never played football in their lives and think they are watching FIFA or championship manager. I’m not suggesting you have to have been an ex pro to have knowledge of the game but some of the nonsense I see and hear drives me mad sometimes.
And of course the obscene amounts of money swilling around in the upper echelons of the game. Surely the bubble will burst one day?