A while ago somebody reminded me this old Eastern-European joke. I cannot give any source - this is folklore.
An old Jew and a young Jew are traveling on the train. The young Jew asks: "Excuse me, what time is it?" The old Jew does not answer. "Excuse me, sir, what time is it?" The old Jew keeps silent. "Sir, I'm asking you what time is it. Why don't you answer?!" The old Jew says: "Son, the next stop is the last on this route. I don't know you, so you must be a stranger. If I answer you now, I'll have to invite you to my home. You're handsome, and I have a beautiful daughter. You will both fall in love and you will want to get married. Tell me, why would I need a son-in-law who can't even afford a watch?"
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