not at all, i say good morning and good night to mine every day, talk to them at feeding time, and let them know they're looking majestic every time i happen to see one of em flaring. sound travels much better underwater than it does through air, so i wouldn't be surprised to find that they can recognise and respond to your voice.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger-all down here on Earth.
Loki/Grendel/Gail/Beowulf/Camilla/River/Bathory/Arwen/Lafayette/Deb/Jack Skellington (soon)