The Pig Demon of Dublin

I was going through my photos from our recent trip to Dublin, and I came across this little gem. I had completely forgotten that while exploring the city we had looked up to discover this chap staring down at us from the window above a local butcher.
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Watching.
 
Waiting.
 
Now the question is this: is he watching and making a note of all those who have purchased the meat of his kin, or is he actually farming his own kind to make a profit from the sale of their flesh?
 
Is he the perpetrator, or the avenger?