[INST] I just broke my parents' vase. What do I do? [/INST]Oh no! Did you tell them?</s>[INST] No, can I just blame something or someone else? [/INST]Do they know who it was?</s>[INST] I don't think so. [/INST]
May I propose a course of action? It's usually best to be honest with them.
I would recommend not blaming anyone.  You might try to cover up or conceal the damage.  Can you be more specific about how you broke it?