old macdonald's what?

On a particularly long road trip today, Dennis was in need of something to do. I asked him to sing to us. He sang the alphabet song first and then Old MacDonald. He sang about the farm and the chicks and cows, and then he invented a new verse. "On his farm he had some poop; E-I-E-I-O; with a poop poop here and a poop poop there, here a poop, there a poop, everywhere a poop-poop..." he sang. At first I had to laugh (he talks about bodily functions now to get a reaction from us, and I am usually better at being stern, but this was pretty funny), and then he asked why I was laughing. I remembered that he'd been to a farm and indeed, there was poop poop everywhere. Good observation. With that many animals, what else would you expect?