I really think that Pip is beginning to stray dangerously into the Godfather's "people asking to be killed" territory. I mean, yeah, she's pretty and he wouldn't normally stand a chance but her behaviour is practically a walking, talking cliché of betrayal. How long will it take before the penny drops?
By the way, that knock-out drug, does it have any occular effects on birds? It might explain his improved sight if he is being dosed heavily with a eye drug with secondary sedative properties.