Here it is where I found it first, in German, and here's an English article. Hedgehogs are getting stuck in McDonald's McFlurry containers. "While it is unknown what a diet of ice cream can do to a hedgehog -- apart from making rolling into a ball a more laborious exercise -- it is not the product itself which is proving deadly but the receptacle." Getting your head stuck in a big plastic container is bad, to say the least. The packaging has been redesigned to avoid hedgehog entrapment.