Changelings There are goblins living in the centre of the Earth They swap their kids for ours As soon as we give birth And if it is a goblin That some new mum has got I find the fact alarming Whilst explaining quite a lot The things that people think The funny roads they walk The awful things they do And the gibberish they talk All those pesky goblins Have made mankind bereft And now I start to worry I'm the only human left.
Nice one. I don't think much of the line "The funny roads they walk", though. "Funny" seems out of place.