Visiting Mother-in-law

Bill’s mother was visiting her son and daughter-in-law, Betty. Bill came home from work and found six vacuum cleaner salesmen outside his house. He dashed in and said, “Mom, there are six men outside who all claim they have an appointment for a vacuum cleaner demonstration!”
“That’s right,” the mother-in-law replied. “Now you just show them all to different rooms and let them start demonstrating.”