It sure is frustrating!
You have two choices:
1) Set fire to your parents.
2) Beat the living shit out of the person who actually did it.
EDIT: Make sure its to their head, so when your parents go to ask what happened, you can casually say said brother tripped...they wont be able to say anything back.
EDIT 2: If its a sister...ignore 2....girl bashing is naughty.