Originally Posted by corporate-wage-slave

This thread is quite similar, though there is a key difference, namely in the above scenario the host cardholder could be present, whereas in this thread the implication is that the cardholder would be elsewhere:
Priority Pass - guest someone without being present?

My view is that you would at least need to enter with the guest, whether you stayed there for long would not be an issue, so you could leave for the other lounge, but it does sound rather anti-social.