WTF? Where is my soup?

So, for some reason, Granny finds it to be her responsibility to clean out the office fridge. She spent 2 days asking people around the office who the "plastic, sealed container with noddle looking soup" belonged to. Of course, we all played dumb and said we didn't know. [The soup was Samm's from a few weeks ago] She asked everyone except for Meredith. Today she decided that the soup had been in the fridge long enough and it was necessary to throw it away. Around lunchtime we had Meredith dig through the fridge as if she were looking for something.

After a few seconds, Granny goes "Oh, I hope you aren't looking for that soup."
Meredith- "Yes, actually, that is my lunch."
Granny-"Oh dear, well it has been in there for a few weeks and I threw it in the trash about 45 minutes ago..hang on...I just sat it in the trash can."
[Granny digs through the trash] "Here it is, it was just sitting on top and it is in a plastic closed container, its okay, I promise, here its still cold even."
Meredith-"umm, no it's okay. It has been in the trash. I'll eat something else."

So, then Meredith went out to get lunch (as she had planned to do all along) and Granny came in to my office to discuss the matter with Samm and I.

Granny-"Girls, let me get your opinion on this matter. I threw Meredith's soup away, but it had been in there for weeks. I figured if someone ate it they would get sick!" (Coming from the woman who ate yogurt left in the fridge from the old secretary. She has been gone from the office for over a year now) "I just sat it in the trash can and it was still in the container, but she didn't want to eat it"
US-"Yeah, umm, I wouldn't want to eat something that had been in the trash either. Just the thought of it being pulled out of the trash is gross"
Granny-"Oh, okay. Well my grandparents always said, 'you need to eat a peck of dirt in your life'"

Then, she proceeded to tell us that she also found a frozen dinner in the refrigerator part of the fridge and it says "keep frozen" so she circled [in black sharpie] "keep frozen" and drew an arrow to it and put it in the freezer 'where its supposed to be'. Apparently, it never occured to her that maybe someone had planned on eating it soon and wanted to defrost it some before putting it into the microwave. After I brought that idea up to her, she took it out of the freezer and put it back where she found it. lol

Moral of the Story: WTF is she doing going through the OFFICE fridge and removing and organizing everyone else's stuff? Oh and if it doesn't have your name and/or initials on it, it is free game. SHE WILL EAT THE FOOD and ask later, "was that your ______ in the fridge? I accidently ate it. I thought it was mine because I have some______ like it at home"
WTF? Seriously, I have never ACCIDENTLY ATE anything!