there’s always an Arquillian Battle Cruiser

Kay: We do not discharge our weapons in view of the public!
Jay: Man, we ain’t got time for this cover-up bullshit! I don’t know whether or not you’ve forgotten, but there’s an Arquillian Battle Cruiser that’s about to…
Kay: There’s always an Arquillian Battle Cruiser, or a Corillian Death Ray, or an intergalactic plague that is about to wipe out all life on this miserable little planet, and the only way these people can get on with their happy lives is that they DO NOT KNOW ABOUT IT!

Men in Black, IMDB