My problem with (most) cyclists is that they can't decide whether they want to be treated like a bike, or a car. They want to be treated like a cyclist when it suits them best, and a car any other time.
A couple examples:
-I've seen it numerous times; cyclist rides down the road like a car until he reaches a stoplight, then he goes into bike mode, and crosses the street in the crosswalk to circumvent the light, then hopes back out onto the road in car mode.
-I live right on a major intersection in Pickaway county and the Tour of the Southern Ohio River Valley goes right threw that intersection and by my house every single year. These bastards are the most inconsiderate fucks I've ever seen. Case in point: This past tour I left my driveway and stopped at the intersection with the intentions of turning left. I was heading the opposite way of the cyclists. Normal rules for a car dictate that each car stops at the stop sign. Cyclists? Psssh. That stop sign isn't for us. So I'm sitting at this stop sign as a group of ~50 bikes rolls up to it. Do you think a single one of them attempted to stop at that sign? Negative. I let about 15 of them roll right on threw it before my temper boiled over and I turned left right into the group of them anyways. The rest of them stopped so I didn't hit any of them, but I'd have slept fine that night even if I had. In fact, I would probably lose count if I tried to keep track of how many of them blow through that sign every year. Again, if they want their share of the road then they need to follow the rules like the rest of us, and not avoid them whenever it suits them. If they did this, I'd have no problem with them. It's the hypocrisy that pisses me off.