Lady Macbeth

Envying (because it was not given him annihilate them and forget them) those times that used to commit evil deeds without remorse, and more care that the happy success, made the greatest efforts to return, and again strengthen that willingness...

Boring

Boredom is a purely human condition, I doubt that animals experience it, unless they are in captivity; Since is a constant mix between activity and relaxation in its natural habitat. They spend the rest to stillness; more boredom and annoyance....