Actually, my and many other user's fiurst thought would be that there's a virus/worm/??? loose on my computer if such events happen that were not specifcally initiated by myself. I'd also start building a huge distrust toward the IT department as thay seem to have the ability to do things to my computer while I'm working on it. Remember, not everybody is IT-savy and you should evaluate how a standard user who's able to use Word but doesn't understand much else will see this.
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There are two types of vessels, submarines and targets.