Observation

'Of course I am trained in perception and observation in an especially thorough manner and therefore am possibly not a generally valid example. Such a gift of peception and observation is of the greatest advantage, but on the other hand also of the greatest disadvantage, and it is rarely welcome, almost invariably unwelcome. Such a person who perceives everything and who sees everything and who observes everything, moreover continually, is not popular, more often feared, and people have always guarded themselves against such a person, because such a person is a dangerous person and dangerous persons are not only feared but hated, and in that respect I have to describe myself as a hated person.'

from Yes