Oh my godddd....yikes!

CHIP! NO!

I don't know what it is about blackies - at our local HS there are two black brothers, beautiful and lean and sweet. They are 10 months old and have been there since they were 8 weeks old. When they have their time out, they are a pair of teenage orangutans! (I think they have a bit of meezer in them somewhere). They are not destructive to the cat toys, towers and tunnels in the room...but I wonder about them in a house like yours...

Where are they being grounded?

I'm sorry your blind got wrecked - I hope you can get another that is a little more orangutan-proof!