The person's attention is spontaneously aroused by or may be prompted to anticipate unwanted effects on material objects and think about how to avoid them. The unwanted effects are likely secondary effects of the actions they intend to do. Anticipation forms an image of what might happen next.
The person is somewhat dependable in following safety precautions because they can anticipate concrete effects when the materials are present. Abstract effects cannot be anticipated and those safety precautions do not make sense to the person. Compliance by rote memory is not dependable.