stuck and busy @ work !!

If there is no response from my gtalk avatar 10 seconds after u pinged, then it means that some one else is using my PC. But, if there is no response after 5 minutes then it means i am taking a break. And even after waiting for 10 minutes you don't get a response then it means that the my PC is misbehaving. And if you still don't get response after hours of waiting then it means that i have left my avatar up and running @ office while i am @ home. But under no scenario it mean that i am stuck and busy at work:D