Swamp coolers. Or maybe it's the fact that the house I'm referring to also has a pool in the backyard that makes it so fracking humid during the summer. Either way, swamp coolers suck. Even in a relatively arid desert. Also traffic, especially how it grows exponentially when you're running late. Also when they air a new episode of a cartoon or something on tv, and you miss it and they don't air it again for days.