Hey Bill !! Can you please do my science project ?? I am very busy. Ok rocky if only you give me some rewards i will bring you lots of chocolates hey ! Thanks . Next day::: Hi Bill thanks for doing my science project . Can you do my maths homework ?? I don't feel so well ah! Okay . But what do get this time?? You get more chocolate from me and may be a treat at the nearest fastfood joint wow , that sounds, perfect will you get your maths homework Tommorow thanks Bill see you