It's you who has started !

In trying to stop the heated argument between your younger host brothers over nothing, they are going to be playing more cards than you. Think back to your childhood: you were never the cause of anything annoying!

So despite how little you actually want to know, you will always hear, "C'est toi qu'a commencé !" = "You started it!"

There's little I can say to help beyond that; from here, it only goes downhill. But don't worry! You can use this to:

Pin the blame on your friends! "C'est lui qu'a commencé," or, "C'est eux qui ont commencés."

or to start a street fight! "C'est vous qui avez commencés !"