timmys father buys a lie detector which gives off a loud beep any time someone in the area lies. timmy comes home late. his father says where were you? timmy says studying at the library beep, timmy says ok, ok I was at a party with my friends. his father says when I was your age, I never had time to stay out late partying like that beep. timmys mother says well I guess it shows he is your son beep