In a thread on an art forum that I frequent (Wetcancas.com), one of the moderators offered the opinion that portrait painting isn't that interesting, since the subjects are usually wealthy, and therefore generally have "bovine, vacuous" expressions on their faces.
I got the guy really ticked off by pointing out that his remark was bigoted. Naturally, no one else agreed with me on that, since they were all artists. Or maybe they just didn't want to upset the mod.
Argh,
Insert a minority into that sentence and you have a very ugly statement.