I swear one of these days I'm gonna snap And you there will be the first to go 'Cause you wear that stupid little smile When all the while the world is crumbling at our feet Get ready for a side of me that you don't wanna meet Sirius, why can't you be more serious? You have to know your childhood days are long gone I'm delirious, playing mom to you Just how old are you? At least try to play along Be more serious You know I would do most anything for you But oh, it's the way you test my nerve That takes me way over the edge Losing sanity allegedly mine Can't you find a better way to spend your time? Sirius, why can't you be more serious? You have to know your childhood days are long gone I'm delirious, playing mom to you Just how old are you? At least try to play along Be more serious Sirius, I know you're serious But sometimes you know you just don't let it show I'm delirious with all I have to do But taking it out on you is not the way to go... But Sirius, why can't you be more serious? You have to know your childhood days are long gone I'm delirious, playing mom to you Just how old are you? At least try to play along Be more serious