I agree, but it also depends on the animals themselves, and their environment. We had a few problems in the past because of tempers flaring after being repeatedly disturbed by over-active eels that crossed their paths. A full on "Im gonna eat you" attack is rare, if these animals are well cared for. However, bites/nips and stalking are more common, and overall one should take into consideration that some things you can just never predict. Just ask Matt what one of his old Sand Tigers did to a fellow tank mate one afternoon, LOL. Poor little guy.
It's no secret, the mistake they made after I left made Good Morning America and other national media spots. Also was used as part of a major Ad push done right afterwards (including a price hike to make the most profit on the rush of people coming to see).
white tip reef vs sandtiger: