Joker: All right, here's another one. Dates back to the rachni wars... So a krogan and a salarian have landed on a rachni world for a top-secret mission.
EDI: That is unlikely. Salarians rarely took part in raids on rachni-occupied worlds directly.
Joker: *sigh* Missing the point. So the two guys are climbing up a hill, going through this nasty geen fog... And as they get to the top, they come out of the fog, and the salarian sees thousands of rachni. He looks over at the krogan sand says, "Well, that makes me nervous."
Joker: The krogan says, "You think thats scary? When this is over, I have to go back down through that fog by myself!"
EDI: The implication being that the salarian soldier would be dead.
Joker: Yes. thank you for killing the 2,000-year-old joke.
EDI: That joke plays to racial stereotypes on both sides. The krogan appears brutish and insensitives, while the salarian appears weak. Stereotypes such as exemplified here led to the development and use of the genophage.
Joker: Well... Well, yeah. It's also one of the only jokes you'll hear both salarians and krogan telling. Comedy isn't really about being nice. Sometimes it's a way to air out the ugly things people think.