On the other hand, if the person's conduct does measure up to the conduct of a reasonably prudent and careful person, the person wasn't negligent. The mere fact that an accident occurred isn't enough to establish negligence. Duphily v. Delaware Elec. Each party has alleged that the other was negligent in various ways, but a party does not have to be negligent in all these ways to be liable. You may find a party liable if that party was negligent in any one of the ways charged and if that negligence was a proximate cause of the accident.
Nobody is required to anticipate someone else's negligence.
There are several defendants in this case. Some may be liable while others are not. All the defendants are entitled to your fair consideration of their own defenses. If you find against one defendant, that shouldn't affect your consideration of other defendants. Unless I tell you otherwise, all my instructions apply to every defendant.