Dragon Attacks Issues and suggestions?

While all of us know, Dragons are wild and unpredictable what they will attack. But one thing that is unrealistic about them is that they should react to things attacking them... If dragons existed, they would become angered when something is hurting them... They should React FIRST to things attacking them, so lets say dragon is near TH (I know many may not agree But) if they were near TH, and an air defense or Archer is shooting at the dragon, the dragon should stop focusing on the thing that is not harming it, and refocus its attention on the thing that is attacking it. This is how a dragon would react in the wild had they existed, so why do they not act normally on here? I dont know if this is a suggestion or a bug that they SHOULD be acting like this but arent, but many of my clan have noticed they have been focusing on useless targets letting things just take them down... its just unrealistic. Ideas? Ill post in both areas just to be safe :) :confused: