This house is going to be destroyed when I'm through with it.
I hope you're not serious! Why would you ruin a house?
Give me a saw and I'll cut it to pieces right now!
The house belongs to someone who cares about it. You should take care of it too if you are using it and not destroy it.
I can destroy it if I wanted to. Nobody cares about it.
If it's not your property, you should leave it alone and not damage it in any way. It's illegal to damage it and it would also upset the other person. Even if it is your own home, you shouldn't damage it since you need a place to stay and I think you will regret it when you're done.