Great article SlimJim100!
I think to a large extent we are at the mercy of our vendors, but to use p2p is irresponsible and should not happen. I remember for a while (and possibly it still happens) that testing patches (primarily speaking of windows) was the mantra, but as things have advanced and IT staff are forced to handle more responsibilities testing (at least for a lot of us) is not an option.
Everytime I do my updates, I sweat a little hoping that nothing crashes, but that has become par for the course.
For anyone that wants to combat phoning home (and unauthorized installs) use SpyBot,
http://www.spybot.info. With a little tweaking, nothing will be able to install unless you expressly allow it. Yes it is a hassle but well worth it. Spybot allows you to take control of your machine and decide who can and cannot access your machine. DISCLAIMER:Using Spybot to stop phoning home may cause your machine to stop functioning properly, before using SpyBot make certain you have a good backup of your registry (part of the initial install).
Again great article Slim, thank you.