Across the border in Seattle lurks a real charmer who tips based on how attractive his servers are. In this most recent instance, he stiffed a server at Bimbo’s Cantina on a $28.98 bill because she “could stand to loose [sic] a few pounds.” Stay classy, asshat!

In fairness, and this wouldn’t make him any less of a douchebag for writing that note, there’s no evidence that he left no tip BECAUSE the waitress was unattractive/overweight/whatever.
It could have been crappy service. I’ve left the doughnut a couple of times: once three tables that sat after me got served before; another time I waited a half hour for the waiter to come back and check for a second drink. Crappy service doesn’t deserve a tip.
Still, in this case…what an asshat. There was no call for the note, and at this point if it was crappy service it no longer matters…
But he did leave a tip, with obesity levels on the rise he left her a reminder to take care of herself. Quite thoughtful if you ask me. My wife constantly does the same for me by not making me dinner, or breakfast, or lunch, hence my name.