Next time, KNOCK first.
The daughter replied, "Mom, I'm thirty-five years old and unmarried. This thing is about as close as I'll ever get to a husband! Please go away and leave me alone."
The next day, the girl's father heard the same buzz coming from the other side of the closed bedroom door. Upon entering the room, he observed his daughter making passionate love to her vibrator.
To his query as to what she was doing the daughter said, "Dad, I'm thirty-five years old and unmarried. This thing is about as close as I'll ever get to a husband! Now, please go away and leave me alone."
A couple of days later, the mother came home from a shopping trip, placed the groceries on the kitchen counter and heard that same buzzing noise coming from, of all places, the living room. She entered the area and observed her husband sitting on the couch, downing a cold beer and staring at the tv. The vibrator was next to him on the couch, buzzing like crazy.
The wife asked, "What the hell are you doing?"
The husband replied, "I'm watching football with my son-in-law."