"Just for fun, Ma, I'm going to bring her over with a couple of her friends, and you try and guess which one I'm going to marry."
His mother agrees. The next day, Moishe brings 3 beautiful women into the house and sits them down on the couch. They all chat for a while.
Moishe turns to his mother and says, "Okay, Ma. Guess which one I'm going to marry?"
She immediately replies, "The red-head in the middle."
Moishe was stunned. "That's amazing, Ma! You're right! How did you know?"
"I don't like her."