The thing is, the PISA speaks. During the main "expression" phase of pumping, the motor makes rhythmic contractions to which it is easy, in a sleep-deprived state, to translate into words. I admit I was relieved to find this post at A Little Pregnant - some commenters list off what the pump says to them ("Hoover Dam," "yoo-ou suck," etc.). My husband thinks it's saying either "whi.te power" or "bla.ck power," depending upon your inclinations - it's a sort of brainwashing tool, in his opinion. I think it says (more innocuously) either "call them back" or "powdered milk." In any case, this is a feature that they might want to eliminate.
My husband returns to work tomorrow. Scary! My mother has proven herself very adept at soothing the baby, however, which provides some measure of comfort.