Fun fact, the door to door vacuum salesmen got laid like crazy by bored rich housewives during the bubble in Japan.
Erotic type of encounter (like from an adult movie), for the men it probably meant both money and pleasure, for the women a convenient way to have an affair, while their husband is out living it up with the hostesses anyway.
Oh to be alive in the time before smartphones when people still organically hooked up to have fun.
So I guess this is exactly the type of salesman a nampashi should aspire to be.