E-I-E-I-O

I was visiting a number of schools for work last week, when I came across something that caught my attention in a kindergarten classroom. It was the posted lyrics of "Old Abdullah had a farm," which in and of itself was amusing enough. But then I started wondering if Abdullah had any camels with a hump-hump here and a hump-hump there. Unfortunately I didn't have time to stay and find out.