I am the happiest person in the world, this day. It is because that it is your birthday today. You have actually started to go back in ages. No jokes. I am serious. You have looking way younger than what you were in your last birthday. People are not going to believe you that you have turned 70 this year and they are going to bother you a lot by asking you how you managed to stay that way. But please let me know that secret first. I wish you a very happy birthday. Many more returns of the day, Grandpa!
Birthday without cakes, candles, and balloons, is nothing. So, today be ready to get a chocolate facial because all the cream of your cake will be applied on your dear face. I will organise and complete the whole task with a little (or more) help from others. I was just hoping where will you take us for the treat! You know what? Being your best friend, I am appointing myself to do that honour. Just bestow me the opportunity to use your credit card. Then everything will go smoothly. So, Happy Birthday my dearest prank-star and I shall see you tonight.