If it helps, I use a SOX proxy at work to read the forums at work. That way if anybody gets suspicious, it looks like a SSH session. SSH is encrypted, and so is SSL , so I am double covered haha. If I play at work. I always proxy from home or through a different computer. I also subscribe to a public VPN, so I also proxy through that too sometimes.
If you do get blocked, proxy through your home, and they won't even know.