Hi there,
Liability car insurance policies generally exclude liability for damage to property belonging to members of your own household.
However, some Swiss liability car insurance policies provide a limited amount of coverage for self-inflicted damages (German: Eigenschäden, French: Propres dommages). This is the case with policies from Baloise and TCS which include the self-inflicted damages rider (up to 5000 Swiss francs coverage for self-inflicted damages per year).
Note: This rider adds 30 - 40 Swiss francs to your annual premium.
If you have a policy which includes this coverage, then you can go ahead and file a claim. If not, you will have to take the loss yourself.
More on this topic:
Swiss car insurance comparison