For starters... That moment right before you're done peeing and completely miss the toilet bowl. EDIT: Picture removed due to personal annoyance. You're welcome.
environmental negligence and aggressiveness are the two worst things that there are. genocide of course, but genocide is the result of aggressiveness. the way accommodating the automobile and having to buy the land to build on, instead of basing what to build where on environmental good sense, do so completely otherwise needlessly to how the world around us looks. 400ppm of atmospheric carbon. global famine and multi-mega-pandemics mutating faster then names can be invented for their symptoms. (i know those last two haven't happened yet, but those are what we are staring in the ugly pimpled faces of, as result of what we are doing to nature through our short sighted ignorance and indifference to doing so. our attachment to familiar ways of doing things, particularly transportation and energy. oh yes, we're at least playing at doing something about energy, but we still have our heads stuck somewhere when it comes to transportation policy. again both motivated by greed, which is a form of aggressiveness and motivated by ego) the short sightedness of human ego and stupidity. popular misunderstanding of the nature of science, motivated by ego and greed, bringing a new age of ignorance, superstition, and feudalism. the abuse of religious beliefs, as excuses for most of these things. people killing each other for the sake of ideology. or doing so the long way, by destroying the environments their means of life depend on. i've probably still missed a few, but i sort of think those are the big ones. oh yes, actually there are several more i haven't yet mentioned. the misapplication of the intention of building codes as instead a kind of protectionism for building trades contractors. the closing of international borders to the free movement of unarmed civilians. the lie that freedom comes from any nationalism, ideology, or people killing each for the sake of either, or for any other reason. everyone who would not wish to do any of those things, having to live in a world that is the result of other people doing them.
I was gonna say the holocaust, but themnax covered that already... so instead I'm gonna go with AIDS. Or ebola.
Trying to get off a plane or a bus, and there is some geriatric prick at the front of the queue taking 1/2 hr to get his luggage down in the time it would take for 50 other people to disembark I hate that
people with attitude. Its no wonder half the planet is trying to kill each other - people are assholes. people should seriously chill out a little.
When you're in a hurry, grab a handful of chips, try to stuff it in your face and miss, leaving little crunchies all over the floor?
People that are too busy with themselves to grant others the same privileges they feel naturally entitled of
The worst thing is when you're not looking for the best thing but content with shitiness and mediocrity in all it's multiple manifestations.