Pretty much that.
So me and my entire family went to a hardware store, and my mom found bird seed that she thought was free food. Of course, she swallowed it, without realizing it, and almost got us kicked out (and banned from the place). Later, when she passed by a dog food aisle, she kept talking about dog food being healthy, and that she was going to eat it when me (I'm 16) and my sister (13) are in college. That isn't very far off, and I seriously don't want her to do that. I know that dog food is not under the same standards as normal food that we'd eat. She still insists on it. I have no idea what got her into the idea, but, she seems to be serious. Is this normal, at all? I don't think she is being sarcastic, and i'd love to have her around, could anyone please help? Thanks.
P.S. I'm being serious. I know that this sounds like a really weird question, but I really don't want her to do that. Please don't think that this is another of those questions you'd find if you went to google images and searched something like "funny yahoo answers".