Bottle is launched when going over pretty typical/normal bumps. During the start of my ride I went over a pretty tame edge of pavement and it was launched, with my buddy who was following barely able to dodge it.
Since it was brand new, I was hoping it was just a rare occurrence and continued using it. Later on in the ride, same thing, a pretty minor bump and it was launched again, flying out into the street. It's a nice bottle, but unfortunately very unsafe and unusable due to the bottle ejecting behavior.