Infrequent Nights

I'm soliciting rat killing tips. I was recently up all night chasing one of the bastards around my bedroom. For quite a while we've known that we've got a friendly rat who visits our kitchen in search of snacks. I don't mind provided he doesn't eat my stuff. But I do mind him monkeying around in my room. It's noisy, obnoxious, and I can't keep my inner hypochondriac from worrying about bubonic plague and the like. I bought these sticky rat traps, but they're crap. Either that or I'm crap at strategically placing them. I think he comes in through the window, so today I put one on the outside window sill. I envision him stepping on it, getting stuck, and then disloding the trap from the sill sending it plummeting four floors to land rat and all on one of my neighbour's head's. That'd be sweet.