The Strawman Gambit: Make a purposefully inaccurate statement in response to the question, attributing the factoid to a previous instructor, and subtly indicate that you yourself don't quite think this is right. Correctly executed, this gambit will divert the pimp into attacking your previous instructor rather than yourself. True example:
DoctorWhat do you know about thiopentone?
PTRI've gotten the impression that it's a bit outdated, kind of a World War 2 relic, which made me wonder why it's still being used.
DoctorWhoever told you that is a fucking dickhead.
The Polarizer Gambit: Most useful in response to a pimp that you know absolutely nothing about so you can't even bluff successfully, this gambit involves making a joke which candidly exposes your ignorance but seeks to distract the pimper with a humorous reference to a different topic which tends to produce strong feelings one way or the other and thus changes the direction of the conversation. I find that this works best with Intelligent Design vs Evolution, as in this true example:
DoctorWhat's your take on the Strong Ion theory of acid-base homeostasis?
PTRI think they should teach both sides of the controversy.
DoctorHa ha, those fucking Americans have no idea do they?
Good luck using these gambits in your daily life. If you have a notable success or if you come with other ideas, please let me know!