You have to go on gut instinct, listen closely to what the mark is saying and how she's saying it. This lady sounded smart enough for alarm bells to start going off if I asked too many unusual questions. And even though she didn't know who I was or what number I was calling from, still in this business you never want anybody putting out the word to be on the lookout for someone calling to get information about the business. That's because you don't want to burn the source—you may want to call the same office back another time.