The TVTropes Trope Finder is where you can come to ask questions like "Do we have this one?" and "What's the trope about...?" Trying to rediscover a long lost show or other medium but need a little help? Head to Media Finder and try your luck there. Want to propose a new trope? You should be over at the Trope Launch Pad.
Freezer
Since: Jan, 2001
GreyBard
Since: Dec, 2009

Is there a trope for useful stupidity? I don't mean Obfuscating Stupidity, I mean Character A is smart and uses the obvious stupidity of his ally Character B to his advantage when dealing with their antagonists and obstacles.
Ex. In A Scotsman In Egypt, the Scottish diplomat Gilles lets his brash young and dumb apprentice Gordon tell the Pope things that Gilles could never get away with saying, and then smooths it over with "Your Holiness, I apologize profusely for my associate."