"...after all, beer and cider don't mix."
I'm quoting the guy at Cropton Brewery here. On the one occasion I did mix them I was indeed most unwell... as to the saying, I can't say I've obseved a dog in the process but I can sure as hell testify to cats giving it a good old 'honking up' on a regular basis.
Of course the above quote is a final testament to a failed business venture - after all, apple trees by the acre don't come cheap, but there is truth in the statement and I'm always very quick to correct those who talk of cider as a good brew...
Pedantic..? Not at all.