Well, I'm not an expert (though experienced), but I AM female and I HAVE said "Mammala" when I meant to say "Carnivora", so I guess at least two people have done this. Told folks about it, too. It's easy for some of us to think one thing but have another one pop from our mouths. (In my case I was told it's related to a form of dyslexia I deal with, no big deal anymore usually but sometimes quite humorous.) If you think THAT's bad you should have heard me trying to tell the plumber about the leak. I KNEW what I wanted to say but "tub" and "toilet" came out before my brain let the right word in the category hook in. Good news for those of you who have had me as a guest: I DO know the difference between a tub, a toilet, and a sink in terms of their functions. So, are you other folks who have made this goof going to "fess-up"? Sukie [Posted in FML issue 2231]