The thing about tall cubes

I used to have a nice cubicle.
Ample storage for stuff I never used, A whiteboard for doodling while on long drawn our phone calls, a pinup board to stick up motivational posters of the deviant kind (it's OK, they were fully clothed) and short walls so I could look around.
Then the facility god moved me. They put me in this corner cube, which was supposed to be more "special". I've still got the storage and the whiteboard and the pin-ups, but I've got tall walls.
I hate it. You know why?
Two reasons.
For one, I can no longer see the nitwits approach me. They just sneak up behind me now and stand there for a few seconds till I get that weird sensation of being watched. And when I turn around, they're standing there looking at my computer screen as if captivated by the pastel colors on the powerpoint presentation on upcoming cost cutting measures. But this is OK. I'm never really looking at real sensitive information while sitting in a cube. They worst that they will see is me amusing myself with Knuckleheads while pretending to be working. So this is just a minor moan. Here's my major bitch - my second reason - about the tall cubes: Previously, I could see people approaching me, and now I can't.

Everybody has people they don't want to spend time with. Especially people from organizations that are always trying to get you to do their job. So whenever I saw one of the people approaching, I would open a serious looking excel file that I built in one of my more productive meetings. It has multiple charts, a pivot table, a couple of dollar signs and looks like a business review template, but it has numbers that mean diddly squat, and column headings that are random acronyms like AGHM, HHTG, and TRGS. So, I would open up this excel file and stare at it like I was trying to melt the computer screen. When the offensive intruder got close enough and said something patently useless - usually something like "Hey D, can you review the 987657 page procedure I wrote up for ordering pencils to stick up my ass, and give me your feedback?" - I would just excuse myself because I just HAD to make sense of the excel file. I have that file on my desktop and it's called "savior".
Another technique I used if foul colleagues approached, is that as soon as they got close enough to my cube, I would get up and start walking away, pretending to talk on my phone. If they called after me, I'd just point first at my watch and then in some random direction, all the while saying "On my way, coming, coming." into my phone. I would then raise an arbitrary number of fingers to signal a vague time for me coming back (could be 30 minutes, could be 3pm). I'd go take a walk or a piss and come back to my peaceful existence.
Now I can't see people approaching.
I'm trapped.
I'm frequently unpleasantly surprised by irritating idiots who walk up and first ensure that I am doing nothing remotely important looking, and then pounce on my free time and club my motivation to death with their dull personalities and inane ideas.
I think they only put me in this "special" cube, because they were onto me.
The scheming bastards.

I hate it.