For the same reason dogs chase cars they have no intention of driving. Because a vibrator can't mow the lawn. After a year, the dog is still excited to see you. So they can find their way back to the house. At a mental hospital you have to show improvement to get out.
Single women come home, see what's in the refrigerator and go to bed.
Married women come home, see what's in bed and go to the refrigerator. The good ones are always taken. Free ones are mostly handicapped or extremely small. A woman to show him how to work it. Put the remote control between his toes.