As for general use, are you traveling a lot? Employees that travel tend to have a bit more leeway with the use of their PC, browsing should be no big deal, but I would still recommend not loading up games or media on it. Get a smartphone or 2nd PC for that. And have some common sense; no porn browsing, period.
OT: sounds like there are a lot of 'bosses' on this thread
really this thread is 'over in 1', as I totally agree with the initial comment. Ad-hoc servers on the net, you're lucky they don't give it and you the boot.
At my current job tho, people hate being left out of the loop, so reply-alls are the norm, rather than the exception. "Think before typing" hasn't been repealed, people just act like it has.
"I think trash is the most important manifestation of culture we have in my lifetime." - Johnny Legend