Well... cats don't speak English, so whatever he sees and hears on it... I'm sure he won't tell *snickers*
I followed Santo's advice and checked the guest account. I'm satisfied that it can't see anything that I wouldn't share. None of my Firefox bookmarks are viewable in the guest account, none of the files in my username's directory can be seen. The one or two programs I wouldn't want found and run, can't be started up and I simply changed their names in the start menu to something inconspicuous. My friend has no idea how to do the bypass that you MVP's know how to do, so I can rest easy that he'll see nothing that I keep to myself.
Easy as it might be to view all the things I don't admit having, to anyone, my friend has no idea how to do that. Hell, *I* didn't know until you told me half a day ago, and I'm pretty good at computers. Just nowhere near as good as an MVP, like I said :p
I'll see everyone after I come back from my trip.
I didn't consider this a "problem" post, but the issue I brought up has been resolved to my satisfaction. Thanks for the responses.