Glad you had a mostly positive cruise. The Muster Drill (Life Boat drill) Is MANDATORY and ordered by the U.S. Coast Guard much as is the Flight Safety presentation (ordered by the FAA) aboard airplanes. There's no getting around it I'm afraid. But, it's usually only 15-45 minutes long and only leads to better things. The usual reason some muster drills take longer than others is because some passengers JUST DON'T GET that they are REQUIRED to attend and lollygag going to the drill thus holding up everyone else's sail-away.