An English professor was trying to make extra money selling vacuum cleaners door-to-door. At his next scheduled stop, he knocked and a little girl answered.
“Young lady, may I please have a word with your mother?” he asked.
“Nah, she ain’t home,” the girl replied.
Taken aback, the man scolded the little girl: “Young lady, where’s your grammar?”
“She’s upstairs taking a bath.”