I would agree that those types of things can be learned. That's where the problem lies - I really don't know what to expect of these clowns because I have only had them about 2 weeks. I got them for free from someone who had them in a tank with a big colony of yellow labs, and some random big fish like a pacu, black shark, etc. I have no idea what he fed the tank, or if they every bothered the inevitable baby labs...
Maybe I'll put a small test fish in the quarantine with them and see how they react.