You can drill and drill but it the real thing is always different. How do you simulate passenger panic? Can you imagine the complaints if they interrupted dinner for "just a drill"
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014