There must have been a few thousand pop tops (things on the top of aluminum cans you open them with) in the rust bucket I bought. couldn't even pick them up with a magnet either. There was also about 3 inches of old weeds, junk and rat and mouse crap under the bench seat....I guess that's better than a venomous snake though! lol. A few wasp and spider nests too...just the norm......
