I was once getting out of a cab at the Geneva train station and caused a cyclist to wipe out. He started screaming at me, but I kept being friendly and helpful until he STFU. I did point out at the end that it’s best not to pass cabs on the right-hand side that are stopped in designated drop-off zones.
Did he really think the cab was stopping there for the heck of it? That I was going to get out of the far side of the cab away from the station? That the 30 or so centimeters between the cab and curb was enough to get through? We’ll never know.
Maybe you’re just unlucky or perhaps you’re not picking up on the subtle cues of cab behavior. Random House is working on a field observation guide for cabs that should be published in 2008 that might help. From a scholarly article in the 1990s written by the same author who is working on the book, I can tell you that the yellow ones are far more aggressive than the red, green or black varieties. If you see racing stripes, extra-fancy lights or airfoils on the back, it is a sign of aggression and it is wise to back away.