Both friends - doctor and engineer- were in love for the same girl. Before going out for a week, the engineer sent a basket of seven Apples with a note" Eat an apple a day and keep doctor away". After returning, he went to girl's place and peeped from the window-- he saw apples unused, and further he saw the girl in bed with the doctor. Shocked, he shouted, "Arrey, what are you doing?" The girl said coolly ,"Instead of your apples I am using His banana a day, keep engineer away."