Bathroom Window

I can no longer open the bathroom window. There is a spider that has made the window sill his home. This spider is at least <--------------------> this long and <----------------> this wide. It his humungous and I am afraid of it. Glenn won't kill it either. And to make things worse. It is nocturnal so we can only find it at night and it runs away when I turn on the light. How am I suppose to kill a spider in the dark. Seems like an all around bad plan to me.
What am I going to do when Glenn is on deployment. Never open any windows probably.