Well for some Saturday morning useless trivia..about a year ago my wife was hell bent on wanting an octopus. I have kept marine aquaria in the past and know how much maintenence they are. As cool as octopi are I did not want to add extra water changes to an already time consuming hobby. I researched octopus care hoping to find some difficult facet of their husbandry that would change my wife's mind. Thank goodness she ultimately lost interest in the idea but one fascinating tidbit that I learned was that captive octopi have been known to escape from their tanks at night, crawl across the fish room to a neighboring tank, eat all of the fish, and then crawl back to their own tank. Thank God salamanders are not that intelligent!
Chip