A fourth person has a ferret, telling all who will listen that it is a cat, that you should get a cat just like it and love it to and is telling this to those who don't really know what a cat is. This person may or may not believe this themselves depending on whether they are simply ignorant of the fact or there is some profit for them in the deception.
Now that is more in line with what we are talking about.
I am so out of my league with you guys! :)