Grandparent scam but you have to get up earlier to fool my Dad

<p>My parents were just telling me about this today. The caller called my father “Uncle John” and claimed to be a nephew. Knew his real first name. My father did not fall for it. Caller claimed he would be visiting their city the next day and asked if they’d be home. The next day my mom answered the phone and caller asked to speak to “my uncle”. My mother replied “which uncle”. Caller said “your husband, do you have more than one?” To which she replied “None of your business.” They called the police who came over and took a report.</p>