The cow that roared

In Ontario, the dairy farmers have a little contest where if you buy a single-serving carton of milk that makes a moo-ing sound when you open it, you are eligible for a variety of prizes.

This week, fellow DSLR member donoreo was the lucky recipient of a mooing carton. And in typical Internet panache, documents his experience with pictures of the apparatus and even a digital recording of the moo.