I am not a looney! Why should I be attired with the epithet looney merely  because I have a pet halibut? I've heard tell that Sir Gerald Nabardo  has a pet prawn called Simon (you wouldn't call him a looney); furthermore, Dawn Pailthorpe, the lady show-jumper, had a clam, called Stafford, after the late Chancellor, Allan Bullock has  two pikes, both called Chris, and Marcel Proust had an haddock! So, if you're calling the author of 'A la recherche du temps perdu' a looney, I shall have to ask you to step outside!
(Yes, it's out of order, but you don't want to hear me sing. Honest.)