Well, I do have to agree with R600 on one tiny point. It is annoying to find some clown who speeds up to pass you and having passed you, slows down; and does it repeatedly. Cyclists like that are morons.

It's worse on a regular commute where you meet this moron day after day. I'm not really into racing in the morning, and after several days of this behavior and showing such them that yes, I am consistently faster than him and hoping that he will eventually just quit trying to force me to follow him, I just find an alternate route because clearly, he is not learning, and I don't wish to contribute to whatever pathetic dialog he has going in his head.