MacbookPro screenshare/remote access

[mccurius]

I noticed a binoculars icon in the menubar of my Macbook pro at work the other day. I looked in System Preferences and found that -screen sharing- and -remote access- were both turned on. I had not turned them on myself. Others in my workplace -do- have access to my Mac, but no one I suspect would care to monitor to me. Any ideas about how these options could be turned on remotely, and, is there a logfile I can check to trace who may have monitored me? Interesting, now I've turned these options off, my Mac is faster. I'd noticed it was slow for a few days, and wonder how long screen sharing was on before I noticed. Creepy.