A proximate cause is a cause which, in natural and continuous sequence, produces the injury, and without which, the injury would not have occurred. It is a cause which had a substantial part in bringing about the injury either immediately or through events which follow one another.
[There may be more than one proximate cause of the injury. The fault of two or more persons may contribute to cause the injury, and in such case, each person's fault is regarded as a proximate cause.]