a third person ; he may be responsible on the ground that the act
of the third person could not have taken place but for his own
fault or breach of duty. There is more than one description of
duty the breach of which may produce this consequence. For
instance, it may be a duty of care in reference to things involving
special danger. It may even be a duty of care with reference to
the control of actions or conduct of the third person. It is, however,
exceptional to find in the law a duty to control another's actions
to prevent harm to strangers. The general rule is that one man is
under no duty of controlling another man to prevent his doing
damage to a third. There are, however, special relations which
are the source of a duty of this nature. It appears now to be recog-
nized that it is incumbent upon a parent who maintains control over
a young child to take reasonable care so to exercise that control as
to avoid conduct on his part exposing the person or property of
others to unreasonable danger. Parental control, where it exists,
must be exercised with due care to prevent the child inflicting
intentional damage on others or causing damage by conduct involving
unreasonable risk of injury to others (Salmond, Torts, ch. TIL,
8. 17:6 (p. 69 of 9th ed. (1936)); Winyield, Torts, 2nd ed. (1943),
p- 105; American Restatement of Law, Torts, Negligence, s315,
s316; Bebee v. Sales (1) ; Brown v. Fulton (2) ) - Cf. North v. Wood
(3); Black v. Hunter (4); Kennedy v. Hanes (5); Edwards v.
Smith (6).