Heathcliff is viewed as an outsider due to his mysterious background, dark appearance, and outsider status as an orphan brought into the Earnshaw family.
Ophelia goes mad due to the psychological and emotional strain of the events unfolding around her, including her father's death and Hamlet's erratic behavior towards her.
Penelope tests Odysseus by asking him to move their bed, which was impossible for anyone else since it was carved from an olive tree still rooted in their bedroom.
Krogstad wants to blackmail Nora because he wants to keep his job at the bank and he knows that Nora's husband, Torvald, can help him maintain his position.
Farrington is unable to concentrate on his work due to his frustration and anger with his boss and personal issues related to alcohol and family problems.