Yah...I thought of that, too...one of my neighbors put up a trellis today on the patio fence, to cover the space. It's up there pretty tight, so I'll hear if someone tries to come in that way.
And of course, there is my front door...my bed is 4' from it, but I'm thinking of putting a chair under the knob. I tell ya, I'm getting neurotic about staying here...
I would put that chair under the knob. Being careful is not the same as being neurotic.