R’ שלום הלוי, a well known מגיד, while traveling on a train, asked his fellow passengers to join him in making a מנין for מנחה. Seven men said that they would be glad to do so, but two refused and left for another car in the train. רבי שלום remarked: “I had always wondered, when we would get to פרשת וישלח, why sheep dogs aren’t mentioned as being among the animals that יעקב sent a מנחה to his brother עשיו. Now I understand. Dogs don’t join for a מנחה.”
06/10/2021