Compare Pieces to Silence of the Lambs

I was just thinking, the next time you get in an argument with anybody about whether SotL should be considered a horror movie.... maybe compare it to Pieces? They have a lot of common ground, if you think about it. There must have been some good threads about this here, but, whatever, I was just thinking about it. Probably most non-horror fans won't know what Pieces is, but it doesn't matter. If you describe it, they should see the similarity. And no one would ever argue against Pieces being horror.