Two weeks ago I interviewed at a subsidiary of a major web property, and "[w]hat is the Lyskov Substitution Principle?" was on a written test they gave me.
I would have told them that I had no idea what that was, but then told them what the "Liskov Substitution Principle" (named after Barbara Liskov of MIT) was. I mean seriously, if a company can't spell, do you want to work there? :-)