Hmm...
Mondays. Partly because, well, it's Monday... but mostly because the cafe across from my office is closed, leaving me with no choice but to drink...
Convenience Store Coffee. This depends on the convenience store, of course, but the one I'm thinking of manages to produce disgustingly bad coffee.
Moving on to more serious matters...
Depression. You either know exactly what I mean, or... you have no fucking idea. I hope for your sake it's the latter. If it's the former... feel free to PM me. I'd be glad to help in any way that I can, even if it's just to listen.
Closets. Only the metaphorical kind. But I really do hate them. I hate judging who I can or should tell about certain aspects of my life, not on the basis of how close I am to them, but on the basis of what their biases might be. And I hate knowing that there are people I'm close to whom I can never, ever tell.
Pronouns. Seriously, English, why can't I have a third-person pronoun set that doesn't suck? Is that really too much to ask? >_<
Hm, what else...
Maya. This is 3D software that I use at work. It sucks, but there's no better alternative. Exclamations of "fuck you, Maya!" and variations on that theme are very, very common where I work.
Illustrator. I'm only just starting to learn it, but everything I learn just confirms my initial impression. I have another vector-based program that I love, but which doesn't export to Illustrator, so I'm saving high-resolution raster images and using a conversion program called Vector Magic to get things into Illustrator... because that's less trouble than dealing with Illustrator itself.
I'm sure there's more, but that's probably a fairly representative sample. :P