These little guys will defy anything that could possibly limit their freedom. Don't keep them contained for too long or it is possible that they might need to leave you and find freedom elsewhere. These pets have very distinct limits when it comes to closeness. Too much cuddling and petting could turn them away. These cats are not ones for repetition, at least when it comes to eating.
Variety is the spice of their life.
Go on, give 'em some spice. You could have a little Albert Einstein on your hands. Aquarian pets have a great capacity for abstract thought as well as a remarkable intuition. Be cautious that these pets don't get too bored. If such a thing were to occur, it would not be unlike them to stir up some sort of trouble, just to see what will happen next.