The defendant is liable only for that harm that was a foreseeable consequence of his unreasonable act. Liability under the majority rule is limited to the harm that a reasonable person using ordinary care under the circumstances would have anticipated as a proximate consequence of his/her act.
Once the defendant has been found negligent, he/she is liable for any harm that follows in an unbroken sequence, without an intervening agent, from that act which was negligent.
The defendant will be held liable for all of the consequences of his/her negligent act as well as the acts of a third party if the defendant should have reasonably foreseen that his/her negligence would be followed by the negligence of a third party.
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