Sam telephones Abe and says, "Oy vay, Abe. Am I in trouble? My best customer has just gone bankrupt and I have lost $1,000,000. I am going to close my store."
"Although you're my main competitor," says Abe, "I'm still sorry to hear that, Sam. So who is he?"
"Nice try Abe," replies Sam. "Do you think I'm meshugga? You think I'm going to tell you the name of my best customer??"