Neither was the creature that actually wrote that particular poem. 
True but it has been a while ( I read the Hitch-hikers as they were issued..and my hardback first edition of "So Long......" is treasured not only because it is one of the few presents my father ever bought me :P
"Vogon poetry is of course, the third worst in the universe. The second worst is that of the Asgoths of Crea. During a recitation by their poetmaster Grunthos the Flatulent of his poem "Ode to a Small Lump of Green Putty I Found in my Armpit One Midsummer Morning" four of his audience died of internal haemorrhaging and the president of the mid-galactic Arts Knobbling Council survived only by gnawing one of his own legs off. Grunthos was reported to have been "disappointed" by the poem's reception, and was about to embark on a reading of his 12-book epic entitled "My Favourite Bathtime Gurgles" when his own major intestine, in a desperate attempt to save humanity, leapt straight up through his neck and throttled his brain."
*Elrond thinks * Lucky for Elros that we are separated beyond the end of the world... he chooses mortality, gets to be king of a nice little island for five hundred years then DIES and leaves me with a crowd of useless realtives.. alienate the Valar, trash the island, come crawling back and its "Uncle Elrond this and Uncle Elrond that and you find you have all their wives and children eating their heads off at Imladris and not lifting a finger while you have to fight in yet another war .. then ask them to do a little thing like chuck something on the fire ....and will they do it? Will they ..."