Sea Apples - experiences/thoughts?

[Whatigot]

They have a couple at an LFS I happened to stop by yesterday...
I understand that if stressed, they can exude a toxin that will most likely do some serious damage but man, what a beautiful creature...

The LFS said theyd had two for 4 months now and no problems.
My reef is exceptionally peaceful, with no coral or feather duster worm nippers that might bug it.