I had no idea that riding in a rickshaw could be that harrowing. I've only seen them on the TV show The Amazing Race, and they always seemed to be going at a rather steady speed. I'm glad you and your friend came through that, although the broken jaw must have been painful.
Yeah, sometimes rickshaw drivers got wild or the other vehicle like cars or motorcycles or the bus drivers go wild and do some wild stuff on roads. This is very often on the road of Dhaka city. There is a saying that if you know how to drive on the road in Bangladesh then you can drive even in hell without facing any trouble.