It is not important whether is the birthday of the girl or of the grandfather, he is always there in family and official meetings, and always ready, whether we walk in the street, in a shop, a restaurant, in an elevator, a room, even in the honeymoon; the fact is that is not possible to ignore  because he is always present. He is arrogant and insolent, he always does what he wants and the fact is that there has not been born the one who can beat him. That guest our guest! happens in the most decent people and in the most sophisticated meetings, he can be present. 
 Since he is: The Bad Smell.