So busy trying to get attention that you can’t pay attention. Most “A-Deficit” people suffer from an enormous need to be liked, and therefore spend an inordinate amount of time focussing on creating an atmosphere of “look-at-me” circus antics when young, and creating insurmountable tasks to overcome when older. The odds are, if they don’t have a problem or challenge to overcome, by default, they will create one. I should know.