No such thing as a free meal?

I just received a parcel from Royal Mail. I had absolutely no idea what it was?

A couple of months ago, Joe had his Annual Health Check at the vets. I was asked would I mind answering a survey about Joe's food. The parcel I have just received asked me would I take part in a dog food research project and feed Joe this well-known brand of food for one week and then answer a few on-line questions about my opinion of the product.

So, here goes, I will keep an eye on him - if he will even eat it - he's a bit of a "fussy eater" is Joe!