FIGS. 3a and 3b is a perspective view of the open inner diameter of a bottle cap in its round state versus its oval deformed state.FIG. 4 is a perspective view of a bottle with protrusions holding a bottle cap in place.FIG. 5 is a perspective view of a bottle with protrusions of another embodiment holding a cap.DETAILED DESCRIPTION OF THE INVENTIONIt has been an ever increasing problem that bottle