Pylades, while curious as to the other immortal who might be around, still had a class to teach, so he switched to demonstrating various submission holds used in jiu-jitsu. He wasn't above admiring that he liked to be in control, and these holds were something he was particularly good at.
He had just about completed the hold successfully, when he saw the door open, and he flicked his eyes over to see who it might be. And that was all the distraction it took. His opponent managed to pin him, but he couldn't bring himself to care, because Orestes was here.