They whisper German platitudes such as, "Kakerlaken werden Ihr Essen befallen, und Sie können sich übergeben." Of course, I know better than to admit this to anyone because then they'd try to have me committed. With my luck, the nuthouse would have roaches, and then I'd
really go insane. O_o
BTW, don't be silly about Nazi helmets. Cockroaches don't have hands. They can't make helmets!