I am a brute when someone disturbs me
As soon as someone disturbs me when I am in deep concentration I become blunt and annoyed with them to the point of insulting them. This can be when I am sleeping and I get a phone call or text, I will text the person back a bit harshly. If someone talks to me while I am working or writing something important, I can start shouting... Fortunately this only happens once in a while but I have to always make it up with the people involved later. How does one cope in such situations?