MAYDAY MAYDAY!!!

In need of helps from MeoW pro!!!

I have a hamster, and cat 'likes' them right. Today, a cat came into the living room and gave birth to a few kittens. What should I do, and my housemate will be back tomorrow afternoon I think. The worse part is they (he) will beat cats up, literally!!
To make thing worse, the cat gave birth near his rack! So he will definitely be pissed! Thus cruelty will come, I can't say much, he will just blame me and I hate to argue, they will say we left the sliding door open, cause I have a hamster etc etc. Well, if the were no rules, I can beat him up anytime since I am much more physical than him, but I want to avoid argument, we staying togather ma.

So the thing is, how can I settle this matter before he returns tomorrow, if I don't settle it tomorrow, I fear for the lives of the cats!

What I know is after giving birth, you are not allowed to go near them, or mama cat will eat all the babies, I'm not in now, will be back home at 6, now my girlfriend is all alone at home, can someone advice me what to do please, we won't raise cat just so you know.

The thing is, my GF saw an incident when she was young, cat gave birth, they got curious and just peek from far away, about 10-15 steps away from mama cat, and they were hiding so mama cat won't see them. The next time they peek, all girls puke, what they saw were limbs hanging out of mama cat's mouth. So does just peeking kills?

And I am now outside, my GF called and told me about it. I will reach home at 6. Pls advice