The trap is spung

The goon goes over and touches Pia's ass.

Pia then does a spinning elbow, knocking the goon out.

Meanwhile...

Sandra hides behind a corner as the goon walks past her in the adjourning passage way.

"Ahh!" Sandra screams as the goon turns just in time for Sandra to do a flying punch, knocking the goon out.

Sandra stands over the goon, who will be added to her growing collection.