If Quark truly understood the Federation every time someone was like "I know you're up to something, Quark" he'd be like "Oh because I'm a Ferengi?! Just because I'm from Ferenginar it means I'm trying to cheat someone?! Who's the Starfleet DEI officer I'd like to speak to him. OR HER OR THEM." And it would work 9 times out of 10.
Blows my mind that at one point in time Quark not only was considered honorable to Klingons, but head of a house at the same time Worf was disgraced and shunned from all Klingon society