haha great thread.
I got nervous when I read the title, thought the op was trying to feed his wife to his fish. I just wanted to make sure she was gut loaded with some carrots and leafy greens first.
MFK folks: You shouldn't be so quick to crucify the guy that fed his fish a lizard. Is it foolish to fed fish lizards, yes. But in the wild if a small lizard falls into the water, an oppurtunistic preadatory fish will eat it, same goes for salamanders, mice, baby birds etc. Just because it is arguably very cruel doesn mean it is unnatural.
If he was feeding the fish a lizard as a means to torture the lizard, than he has some maturing to do.