Woman in front of me on a motorized bike (like a bicycle with a small motor), suddenly remembers she has to take a left. So without looking, suddenly brakes hard and goes left the moment I want to pass (at a normal cycling speed, near a busy intersection so no high speeds or anything). I almost run into her and hit her with my side. She falls. I get off, help her up " mam, are you ok? " etc. Then some nut comes running, telling me that I should allow people coming from the right to pass (she was not coming from the right, we were going the same direction.)

The annoying thing is that he is holding the saddle of my bike as I am helping the lady up, and tells me I should leave my name and number to cover any damages. Luckily, the lady tells him that it was her fault and she did not look over her shoulder when she took a sharp left (honest people do exist). She even asks me if I am ok. The guy finally calms down. But still stands there holding my bike like I would be lucky to even get it back. I ask him "can I please have my bike back?", and he lets go.

On the one hand, I can appreciate him wanting to help the woman. He assumed I ran into her. On the other, physical intimidation and almost looking for a fight is not going to help anyone in that situation. Also, I was helping her up, even if it was my fault, it is not like I was trying to get away.