person A: Rolling down a huge downhill street with no brakes was fun but nervewracking
person B: Whoa!  What were you driving that had no brakes?
person A: I found a bike on the side of the road but didn't test it before coasting down this hill
person B: That sounds quite scary!  Did everything turn out OK?
person A: Yeah_comma_ usually I don't trust myself with those kinds of things_comma_ but I decided to go for it_comma_ rolled on some grass to lose a little speed