They are one of the most unpleasant races in the galaxy. Not evil. But ill-tempered, bureaucratic, officious, and callous.......On no account should you allow a Vogon to read poetry to you.
Vogon poetry is, of course, the third worst in the universe. The second worst is that of the Azgoths of Kria. During a recitation by their poet master Grunthos the Flatulant of his poem "Ode to a small Lump of Green Putty I found in My Armpit One Midsummer Morning", four of the audience members died of internal hemorrhaging and the president of the Mid-Galactic Arts Nobbling Council survived only by gnawing one of his own legs off.