My husband once had an encyclopedia salesman (yes, we're going back a long time ago) repeat his entire spiel TWICE and then said "that sounds like a great deal...but do they come in Braille?"
Another time he told the salesman "sure, that sounds great...I'll take 5" and then proceeded to give his credit card number - 65547908765453***5689008654***322......
This was at the dinner table and my kids had a blast listening to their Dad!
PS My son went to work for a telemarketing company years later...for about a week....
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Buffalo
...Staten Island...New Jersey...The Village of Amelia!