Just look down below at the usernames on this forum and see which ones aren't appearing at the same time.
That doesn't work Medro. There is an invisible function, should you choose to use it. Also, you could log into your other account via the 3G network from your mobile device.
I don't know why would he answer that question in the first place regardless, I'm gonna stick CapBhoy, Wilhelm and QEII all on the ignore list.