How does client license works

Hi everyone, I just need a clarification on how client licensing works in SEP 12. When I install a client on a Windows pcfor user X, it adds a license that I can view in my console as user X. When another user login on the same pc, I see on the console that SEP automatically adds a new license for user Y. This is normal? Thus one license for every user on every pc? But if I remotely login as administrator on a pc for administrative tasks, how can I avoid to use a license that then I'll remove on my SEP console?

Thanks!