care. The standard never varies, but the care which is reasonable to require of the actor varies with the danger involved in [the] act and is proportionate to it. The greater the danger, the greater the care which must be exercised. . . . - Restatement (Second) of Torts §298 comment b.
care under the circumstances •Permutations •Violation of statutory standard (negligence per se) •(Next class) Violation of personal or industry custom •(Next class) Inferring breach from circumstances