uhm... last one i can actually remember:
a boy was sittin on a park bench one day eating chocolates... an old man was sittin infronta him and when he finished eatin his 6th chocolate bar, the old man said " did u know that eating too much chocolates bad for you??" then the boy said "did u know that me grandad lived upto 105 years old??" then the old man said "why? did he eat that much chocolates???" then the boy said "NO! HE MINDED HIS OWN BLOODY BUSINESS!"