More than you bargained for

Jimmy has a plan to make money one day and he goes up to his sister and says, i know your secret. she said, heres $5 don't tell anyone. then he goes to his mom and says i know your secret she says, SHHHH don't tell anyone heres $15. then he goes to his dad and says, i know your secret, his dad says, here is $20 don't tell anyone. Then he goes up to the mailman and says, i know your secret. and the mailman grabs him and hugs him then says, SON!!!