(1) In this chapter, unless the context otherwise requires: “Bank” includes any person or association of persons, whether incorporated or not, carrying on the business of banking;
(2) “Fiduciary” includes a trustee under any trust, expressed, implied, resulting or constructive, executor, administrator, personal representative, guardian, conservator, curator, receiver, trustee in bankruptcy, assignee for the benefit of creditors, partner, agent, officer of a corporation, public or private, public officer, or any other person acting in a fiduciary capacity for any person, trust or estate;
(3) “Person” includes a corporation, partnership, or other association, or two (2) or more persons having a joint or common interest;
(4) “Principal” includes any person to whom a fiduciary as such owes an obligation; and
(5) “Savings institution” includes a federal or state savings and loan association or savings bank.
(6) A thing is done “in good faith,” within the meaning of this chapter, when it is in fact done honestly, whether it is done negligently or not.