I had to laugh when I first saw the title. I thought you might be the person who was behind me at SFO Monday night!
I packed a 5 lb pumpkin in my carry-on and it caused some very minor issues with TSA. At first they were confused as to what it was and sent my bag thru the x-ray machine twice. It took me a second to realize what was going on so I told them it was a pumpkin. They then wanted to make sure it "was really a pumpkin" and swabbed it for explosives and searched the rest of my bag. Not a big deal since I was early, and we all had a pretty good laugh about it. I have a sneaking suspicion they thought I was nuts, though.