The young fellow had organized a party at his parent's home. A fairly large collection of young people were present and his parents had been able to meet and speak briefly with each. As the parents were leaving the gathering, the fellow pulls his mother aside and announced that he's fallen in love and is going to get married.
"Just for fun, Ma, I'm going to bring over three women and you try and guess which one I'm going to marry."
Three young ladies were quickly collected and assembled. He then says, "OK, Ma, guess which one I'm going to marry."
"The red-head in the middle," she immediately replies.
"That's amazing, Ma. You're right. How did you know?"
"I don't like her," she says.