NAUGHTY BOY has a bleeding nose. CHEUNG believes the dry weather is to blame, but MR. GWO, NAUGHTY BOY’s father, thinks watching too much pornographic movie is the cause. He shows CHEUNG pornographic VCD. MRS. GWO frisks MR. GWO as they leave. He puts the VCD into CHUEN’s shopping bag in the nick of time. CHUEN takes the VCD home unwittingly. FAI finds the disc in TO’s study and tells KEI immediately. CHUEN and TO discover the disc at last. TO remembers PO, KIM and YIM have used his computer. Neither KIM nor PO admits having the disc. As a result, everyone points the accusing finger at YIM. SUM thinks it is necessary to teach YIM proper sex education.