Cruise travel as in hitch-hiking? Not dangerous at all. ;-)
I can tell you in all honesty, I have no worthwhile opinion relating to the dangers of cruise travel. I figure if 1/6,666 pax is taken for satanic sacrifice, it's within historic boundaries.
Heh. Nope, there is a travel agent FReeper who jumps down the throats of anyone who posts *anything* related to the cruise lines, no matter what they say--and you get an ad spam to go along with it.