Exactly... I absoloutely despise this...
Especially all the people (they're always on mountain bikes) who use all their strength and might to pass me... Only to run out of strength and not even be able to pull away, but instead... slow down significantly.

I had one woman do this to me today... She was in some mountain bike with a rack and full panniers... She passes me... She keeps on a pretty good pace. I thought to myself "okay... nice.. You can sustain 30km/hr on a mountain bike with full panniers. You must have mighty legs.".

She didn't keep it up very far though. Maybe about 1/2 a block. We hit a hill... She stands up to pedal with all her might. Mean while... I pass her on the hill without even getting up off my seat.
I even made it a point of coasting behind her without pedaling... lol

She probably did it because she got offended that I passed her earlier at a really fast speed...
Why do people take it so personally? I'm faster then you... Big whoop. If you're gonna pass me, you better keep up that speed for the rest of your trip. Otherwise Don't waste my time. Because I always end up tailgating them until I find enough space to pass them.

I could tell this person was chasing me the entire time after I passed her. PRobably taking advantage of every red light I had to stop at... and also taking advantage of the momentum she got while I was waiting for a red light. lol