Answer:
superseding or intervening event
Explanation:
A superseding or intervening event refers to an event that occurred after the initial negligent event that caused the injury or the accident. If this intervening event causes further injury or damage, the tortfeasor is not responsible for it.
The golfer (tortfeasor) is responsible for hitting the spectator (initial negligent act), but the lightning hitting him/her while lying on the floor is considered a superseding event and the golfer is not responsible for any damages caused by the lightning.