An Idea Is Bulletproof

I've now had to ban my roommate's cat from my room, he's just insane at nighttime. Last night he managed to knock my fan onto my bed and then it bounced onto the floor. Thankfully it didn't break but it did coincide with a nightmare I was having and when it came to the part about evil things giving a sign they were present the fan hit my bed giving me a near heart attack. So I squirted the cat with water, he ran off, I thought that taught him a lesson. But no, 6am I woke up because he'd just knocked over this little storage unit that I have on top of my bookcase (same bookcase the fan sat on) and it took a lamp with it and the lamp was about 6 inches from hitting me in the head. So no more cat in my room. He'll now sit outside and meow which isn't a lot of fun but it beats being woken up with a concussion to start my day.