Final answer:
The statement is false. Personal safety should always be prioritized, and law enforcement should be contacted to handle situations where weapons are involved. In the example given, the gun shop owner should not sell a weapon to someone threatening to harm others and should inform the police.
Step-by-step explanation:
The statement that if someone sees a person with a weapon, he or she should always attack that person is false. In any situation where a weapon is present, personal safety and the safety of others should be the primary concern. It is important to assess the situation and consider the potential risks before taking any action. The correct approach would be to retreat to a safe place and contact law enforcement immediately, allowing trained professionals to handle the situation.
In the counter example situation provided, the gun shop owner is responsible for not selling a weapon or ammunition to a person who has openly stated intent to harm others. The correct action would be to refuse the sale and to alert the police about the individual's threats, prioritizing community safety and ethical responsibility.