Hi! I apologize if this is not the right place to post this but I really need advice, and it's really scaring the fuck out of me! So recently my friend has been staying over at my house for a couple months, and it turns out her shit stain fuck all cunt boyfriend has been sneaking into my fucking house and intruding in the middle of the night (by the way, i'm 16 and shes 18 and her boyfriend is 21). I fucking hate this guy with a passion, and the fact that he's even NEAR my house makes my skin crawl. I know which window hes been coming in through, and I've locked the window and everything but my friend can obviously easily open it from the inside. How in the FUCK DO I CATCH HIM? Is there a way I can set up a booby-trap or an alarm or some shit to warn me if he comes through my window again?? Any help appreciated. I've been staying up and I plan to stay up the rest of the night to stay aware and see if anything happens so.