The best approach to resolve a situation where you notice that Harold started having a catastrophic reaction after a loud western movie came on T. V. is to reassure Harold, and tell him that everything is going to be fine.
Reassure Harold that you may understand that he might be feeling confused and agitated but he needs to calm down as everything is fine. This is the bets way to react, by a person who is taking care of people with dementia and are giving such catastrophic reactions.
If you go ahead and try to reason with the person stating facts and defending your actions, it may not help the situation, therefore try to make the person feel that he is being listened to and trusted as well.
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