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On a serious note, I (used to) count some slaughterhouses among my clients and they have art...
Pictures and (abstract) paintings of whatever animals they slaughter.
I used to frequent a veal slaughter and they had more paintings than you'd expect in the hallways and offices.
I remember one painting with a cow with very festive colors.
A current client has a red statue of a cow in the entrance hall.
We had some pig slaughters as well, but I never visited those.
I don't doubt they'll have Swine Art on their walls though.
On a side note, the people that work in those places aren't particularly interested in art.