Actually I have none. I was told by a vet and took it for fact, though I suppose I should delve into it more. Either way, most people do not just have oils on their hands from daily chores. And if they wash their hands before handling, then most likely they will have soap, which is definitely not a plus. And besides, the frog shouldn't have a chance to pee on the keeper often as, like you said, there is a very exclusive list of reasons why a frog should be handled. So with or without oils from the hands, handling is definitely detrimental. As for fish, I was well aware. When fish lose their mucous layer, all is not well. We have seen what happens with the saltwater aquarium we tend.
-----
Andy Maddox
AIM: SurfAndSkimTx04
MSN: Poloboy32486@hotmail.com
Yahoo:surfandskimtx04
Houston Herp Key
The Reptizone