"The speech banana is a region in which all the phonemes of the world's languages fall on an audiogram. An audiogram is a graphical representation of a person's hearing acuity at a range of frequencies and loudness levels, and it is generally charted with frequency level (in Hertz on the x-axis and decibel level (dB) on the y-axis. When the sounds of speech or phonemes of all known human languages are plotted on an audiogram, they cluster in a banana-shaped region known as the speech banana." (<a href="http://en.wikipedia.org/wiki/Speech_banana">Wikipedia)
So I just overheard a conversation in the breakroom about whether to use vinegar in traps to catch fruit flies. I couldn't help myself--I butted in with a recitation of the old "Time flies like an arrow. Fruit flies like a banana."
I maintained a fruit fly colony for biology labs long ago. We used sugar and bread yeast dampened with a bit of water in the traps to catch those that escaped into the classrooms and building wing in which the labs were held.