I start off by looking forwards to being alone for a few days. I'm not overly great with lots of people (althought I can enjoy big social gatherings), as this time allows me to relax, unwind and the real me to come out of my 'shell' (yes, I know there isn't anyone other than me to 'see' me, but thats how I work...)
I have fun. Game, read, watch TV, work out, mess around with my airsoft and/or kendo stuff, work, at night...stuff.
But I forget one thing -
I get paranoid. I'm not sure why. I do know that I just don't want to be seen/see someone. Or something (man the 'slender man' thing fucked me up...) But, the longer I'm alone, the more...obvious I suppose is the best term, it becomes.
This usually results in me doing the following:
Closing all curtains. Leads to the problem of the kitchen - no curtains, so obviously, after dark, that area is a no-go (or atleast leads to rapid crawls below the window and cabinets.
I usually set myself up in a few rooms as possible (just for handiness), usually the lounge and/or dining room - quick access to the bathroom & kitchen, and both rooms have the 360/PC/TV in them.
With the paranoia - I practically fortify the rooms. Suddenly, my practice sword (a heavy oak replica) and my skirmishing LSW are 'at the ready', as near to me as possible (the LSW has the battery charged and several mags to hand...not that I could actually defend myself withit)
Common sense pretty much flies out of the window, and the "someone's watching you" and "they're out to get you" feeling seeps to the front of my mind. No matter what I do - game, read, watch TV, whatever - the feelings are almost always on the surface. Obviously, it gets worse at night.
In the end, what could have been a relaxing week on my own - turns into a paranoid hell, locked in my own home, waiting for my family to return (usually from taking/collecting my sister to/from Uni in scotland). The longest I've been left is 8 days. The nuttiness usually appears around the early evening of the 3rd day. Fun.