What goes around

She loved teaching her parrot Nkuzu to repeat filthy phrases back to her, but she had never expected that he would do so in the presence of the gas man, who took the phrase as a proposition and wasted no time getting down to business. Alas, Nkuzu didn’t appreciate such things, although he didn’t protest either, simply letting the spunk hang off his beak until most of it fell to the floor.